Its called a Palindrome, i.e radar, redivider. Palindromes can also be sentences.
palindrome
a palindrome
A palindrome
The number that reads same when inerted is SIX.When inverted it reads SIX.
A palindrome
A Palindrome.
radar
Palindromic
palindrome
a palindrome
A palindrome
A palindrome
rotator
If you mean can be read the same back to front as front to back such as 12321 or 75257 its a palindrome.
The number that reads same when inerted is SIX.When inverted it reads SIX.
A palindrome
Paraguay