31232332131 has 48 divisors (see below), whose sum is σ = 56219708160. Its totient is φ = 14976524160.

The previous prime is 31232332121. The next prime is 31232332139. The reversal of 31232332131 is 13123323213.

It is not a de Polignac number, because 31232332131 - 2¹⁰ = 31232331107 is a prime.

It is a super-2 number, since 2×31232332131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31232332139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 360976 + ... + 439053.

It is an arithmetic number, because the mean of its divisors is an integer number (1171243920).

Almost surely, 2^31232332131 is an apocalyptic number.

31232332131 is a deficient number, since it is larger than the sum of its proper divisors (24987376029).

31232332131 is a wasteful number, since it uses less digits than its factorization.

31232332131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800076 (or 800063 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

Adding to 31232332131 its reverse (13123323213), we get a palindrome (44355655344).

It can be divided in two parts, 31232 and 332131, that added together give a palindrome (363363).

The spelling of 31232332131 in words is "thirty-one billion, two hundred thirty-two million, three hundred thirty-two thousand, one hundred thirty-one".