31313211032 has 16 divisors (see below), whose sum is σ = 58726910760. Its totient is φ = 15652701504.

The previous prime is 31313211031. The next prime is 31313211043. The reversal of 31313211032 is 23011231313.

It is a junction number, because it is equal to n+sod(n) for n = 31313210995 and 31313211013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313211031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453773 + ... + 518204.

Almost surely, 2^31313211032 is an apocalyptic number.

It is an amenable number.

31313211032 is a deficient number, since it is larger than the sum of its proper divisors (27413699728).

31313211032 is a wasteful number, since it uses less digits than its factorization.

31313211032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976010 (or 976006 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31313211032 its reverse (23011231313), we get a palindrome (54324442345).

The spelling of 31313211032 in words is "thirty-one billion, three hundred thirteen million, two hundred eleven thousand, thirty-two".