31213212011032 has 16 divisors (see below), whose sum is σ = 58547732454000. Its totient is φ = 15600483356640.

The previous prime is 31213212010999. The next prime is 31213212011081. The reversal of 31213212011032 is 23011021231213.

It is a junction number, because it is equal to n+sod(n) for n = 31213212010994 and 31213212011012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765309444 + ... + 765350227.

It is an arithmetic number, because the mean of its divisors is an integer number (3659233278375).

Almost surely, 2^{31213212011032} is an apocalyptic number.

It is an amenable number.

31213212011032 is a deficient number, since it is larger than the sum of its proper divisors (27334520442968).

31213212011032 is a wasteful number, since it uses less digits than its factorization.

31213212011032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530662226 (or 1530662222 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31213212011032 its reverse (23011021231213), we get a palindrome (54224233242245).

The spelling of 31213212011032 in words is "thirty-one trillion, two hundred thirteen billion, two hundred twelve million, eleven thousand, thirty-two".