313231312232 has 16 divisors (see below), whose sum is σ = 587319283140. Its totient is φ = 156612836736.

The previous prime is 313231312211. The next prime is 313231312297. The reversal of 313231312232 is 232213132313.

It can be written as a sum of positive squares in 2 ways, for example, as 312474292036 + 757020196 = 558994^2 + 27514^2 .

It is a super-2 number, since 2×313231312232² (a number of 24 digits) contains 22 as substring.

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, 164318 + ... + 808370.

Almost surely, 2^313231312232 is an apocalyptic number.

It is an amenable number.

313231312232 is a deficient number, since it is larger than the sum of its proper divisors (274087970908).

313231312232 is a wasteful number, since it uses less digits than its factorization.

313231312232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704852 (or 704848 counting only the distinct ones).

The product of its digits is 3888, while the sum is 26.

Adding to 313231312232 its reverse (232213132313), we get a palindrome (545444444545).

The spelling of 313231312232 in words is "three hundred thirteen billion, two hundred thirty-one million, three hundred twelve thousand, two hundred thirty-two".