31330310012022 has 48 divisors (see below), whose sum is σ = 72892634572800. Its totient is φ = 8951307239952.

The previous prime is 31330310011969. The next prime is 31330310012033. The reversal of 31330310012022 is 22021001303313.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 31330310012022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11531563 + ... + 13987049.

It is an arithmetic number, because the mean of its divisors is an integer number (1518596553600).

Almost surely, 2^{31330310012022} is an apocalyptic number.

31330310012022 is an abundant number, since it is smaller than the sum of its proper divisors (41562324560778).

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

31330310012022 is a wasteful number, since it uses less digits than its factorization.

31330310012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498905 (or 2498898 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31330310012022 its reverse (22021001303313), we get a palindrome (53351311315335).

The spelling of 31330310012022 in words is "thirty-one trillion, three hundred thirty billion, three hundred ten million, twelve thousand, twenty-two".