What is the number like 121 393 272 which is read same from left and right called?
The word form e.g. (Anna or radar) are known as palindromes
(singular = palindrome) or palindromic words.
The same name is used for numbers that are the same in reverse
but are often referred to as 'numerical palindromes' or
'numerically palindromic values'.
The use of the word 'numerical' or 'numerically' in relation to
a numerical palindrome is not really necessary as being
palindromicity, or the nature of being palindromic does not
expressly refer to word forms.