31330031042312 has 16 divisors (see below), whose sum is σ = 58810035735360. Its totient is φ = 15647354846224.

The previous prime is 31330031042291. The next prime is 31330031042329. The reversal of 31330031042312 is 21324013003313.

It is a super-2 number, since 2×31330031042312² (a number of 28 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, 2207576828 + ... + 2207591019.

It is an arithmetic number, because the mean of its divisors is an integer number (3675627233460).

Almost surely, 2^{31330031042312} is an apocalyptic number.

It is an amenable number.

31330031042312 is a deficient number, since it is larger than the sum of its proper divisors (27480004693048).

31330031042312 is a wasteful number, since it uses less digits than its factorization.

31330031042312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415168740 (or 4415168736 counting only the distinct ones).

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

Adding to 31330031042312 its reverse (21324013003313), we get a palindrome (52654044045625).

The spelling of 31330031042312 in words is "thirty-one trillion, three hundred thirty billion, thirty-one million, forty-two thousand, three hundred twelve".