Hello Jaya,

I would suggest that if the Document # will have hyphens or something that it is considered a number. The solution might only changing the type of property if it is possible. That means delete the one you have, create it again but as text one and then try it again. This behavior might be because the hyphens aren't being recognized as numbers and that's maybe why it give you commas, like a big number on a calculator. 

If by any chance you are pulling off some data with most of its characters are numbers but there is a single letter or special characters, I recommend you to create a string property, in order for you to not have so much issue converting from string to number and vice versa.

I hope this works for you. Let me know if get you solved.

Regards,

Carlos