31312122032 has 10 divisors (see below), whose sum is σ = 60667236468. Its totient is φ = 15656061008.

The previous prime is 31312122031. The next prime is 31312122071. The reversal of 31312122032 is 23022121313.

It is a super-2 number, since 2×31312122032² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31312121995 and 31312122013.

It is not an unprimeable number, because it can be changed into a prime (31312122031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978503798 + ... + 978503829.

Almost surely, 2^31312122032 is an apocalyptic number.

It is an amenable number.

31312122032 is a deficient number, since it is larger than the sum of its proper divisors (29355114436).

31312122032 is a wasteful number, since it uses less digits than its factorization.

31312122032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957007635 (or 1957007629 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31312122032 its reverse (23022121313), we get a palindrome (54334243345).

The spelling of 31312122032 in words is "thirty-one billion, three hundred twelve million, one hundred twenty-two thousand, thirty-two".