31132111123112 has 32 divisors (see below), whose sum is σ = 58388979496320. Its totient is φ = 15561717185280.

The previous prime is 31132111123007. The next prime is 31132111123129. The reversal of 31132111123112 is 21132111123113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553264403 + ... + 553320669.

It is an arithmetic number, because the mean of its divisors is an integer number (1824655609260).

Almost surely, 2^{31132111123112} is an apocalyptic number.

It is an amenable number.

31132111123112 is a deficient number, since it is larger than the sum of its proper divisors (27256868373208).

31132111123112 is a wasteful number, since it uses less digits than its factorization.

31132111123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74321 (or 74317 counting only the distinct ones).

The product of its digits is 216, while the sum is 23.

Adding to 31132111123112 its reverse (21132111123113), we get a palindrome (52264222246225).

Subtracting from 31132111123112 its reverse (21132111123113), we obtain a palindrome (9999999999999).

The spelling of 31132111123112 in words is "thirty-one trillion, one hundred thirty-two billion, one hundred eleven million, one hundred twenty-three thousand, one hundred twelve".