231031313003312 has 40 divisors (see below), whose sum is σ = 471183714812160. Its totient is φ = 109435552580160.

The previous prime is 231031313003297. The next prime is 231031313003339. The reversal of 231031313003312 is 213300313130132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119897237 + ... + 121808907.

It is an arithmetic number, because the mean of its divisors is an integer number (11779592870304).

Almost surely, 2^{231031313003312} is an apocalyptic number.

It is an amenable number.

231031313003312 is an abundant number, since it is smaller than the sum of its proper divisors (240152401808848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231031313003312 is a wasteful number, since it uses less digits than its factorization.

231031313003312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309241 (or 2309235 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 231031313003312 its reverse (213300313130132), we get a palindrome (444331626133444).

The spelling of 231031313003312 in words is "two hundred thirty-one trillion, thirty-one billion, three hundred thirteen million, three thousand, three hundred twelve".