As I had to install Lingua::EN::Inflect to make it run, the obvious next question is to make it localize
Happy 18,119th unbirthday, Tux!
You have 94 days until your next birthday.
I never use the TRIADSEP in numerals, and in Dutch, 18,119th looks stupid.
(I had a lot of fun back in the day when I still used Windows-NT on my desktop. Windows allows you to set virtually any specific locale entry, getting you weird combinations. I used to set RADIXSEP to "." (default en_US) and TRIADSEP to " " (that is a space :). Have a look how many import- and export filters for the M$ suite start failing.)
Enjoy, Have FUN! H.Merijn