If you wish to communicate information, I suggest you call it an 2000-gon. Although there is a prefix for 2000 (dikilo-) I suggest you keep it simple. Not only is the use of long Greek prefices pretentious, you will only annoy the reader who will probably have to consult a dictionary. Having said that, if you do want to be pretentious or obfuscate, you can use the link below for polygons with up to 999 sides. http://faculty.kutztown.edu/schaeffe/Tutorials/General/Polygons.html
An 11 sided shape is an Eptogon
A nine sided shape or polygon is called a nonagon.
Why not just call it "a 130-sided shape"? because its not called that, spaz.
A five sided geometric shape is called a pentagon.
pentacontakaietretetragon
you call a seven sided shape a heptagon.
An 11 sided shape is an Eptogon
A 12-sided shape is called a dodecagon.
A 30 sided shape is called a Triacontagon.
dochiliagon
A nine sided shape or polygon is called a nonagon.
A seven sided shape is called a heptagon.
Why not just call it "a 130-sided shape"? because its not called that, spaz.
A five sided geometric shape is called a pentagon.
Well, isn't that just a delightful question? A shape with 118 sides is called a "hectatontagon." Just imagine all the happy little angles and lines creating such a unique and special shape. Remember, there are no mistakes in geometry, just happy little discoveries.
dochiliagon
Parallelogram