Thank you for your helpful ideas. AI recommended a mail merge, but either I didn't understand the instructions correctly, or the idea was completely nonsense. I thought I followed the instructions closely, but the result I got had only the first number in my list on all pages instead of a proper sequence.
I am still experimenting. I am trying to help with a dictionary in a Mayan language, but it may be several months till I am ready to print it, so I am so far just trying to understand my options for adding these page numbers. I can wait to add the page numbers until the last step before printing, if that would allow me to use Mail Merge, or I can try some VBA code if that is better. I use Word almost every day. I think I have a good grasp of its basic abilities, but mail merge and fields is an unfamiliar aspect to me, and VBA is definitely beyond my understanding. However, my brother has used some VBA in Access, and might be able to help me adapt code to the specific need if somewhere I could find something close.
So I am not sure about my exact formatting yet for this dictionary, but I am attaching a sample document with the page number in numeral and written out form Sample Mayan numeral page number try.pdf. Unfortunately I can't attach a Word document, so it's only in .pdf. I put the correct numeral and word for page 507 and 508 into the footer. Of course, since it's in the footer, you'll see those two numbers on all the pages. Note that the numeral needs to be in a small text box, so that the horizontal digits display in vertical format like they need to.
Also, here is a screen snip of my my Excel list of the numerals and words 1 - 1200. Mayan numerals screenshot.png Column B is the numeral, Column C is the word written out, Column A is the corresponding Arabic numeral.
Please note that you will need the "Noto Sans Mayan Numerals" font to properly display the numerals.
Thank you for your help.