Adding to 23131134421143 its reverse (34112443113132), we get a palindrome (57243577534275).
It is a happy number.
It is a congruent number.
Almost surely, 223131134421143 is an apocalyptic number.
23131134421143 is a wasteful number, since it uses less digits than its factorization.
23131134421143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31313831.
The spelling of 23131134421143 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred thirty-four million, four hundred twenty-one thousand, one hundred forty-three".