31000012133022 has 24 divisors (see below), whose sum is σ = 68305111481880. Its totient is φ = 10158196065840.

The previous prime is 31000012132961. The next prime is 31000012133039. The reversal of 31000012133022 is 22033121000013.

31000012133022 is a `hidden beast` number, since 310 + 0 + 0 + 0 + 1 + 2 + 1 + 330 + 22 = 666.

It is a super-2 number, since 2×31000012133022² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31000012132986 and 31000012133004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14595108229 + ... + 14595110352.

It is an arithmetic number, because the mean of its divisors is an integer number (2846046311745).

Almost surely, 2^{31000012133022} is an apocalyptic number.

31000012133022 is an abundant number, since it is smaller than the sum of its proper divisors (37305099348858).

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

31000012133022 is a wasteful number, since it uses less digits than its factorization.

31000012133022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29190218648 (or 29190218645 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31000012133022 its reverse (22033121000013), we get a palindrome (53033133133035).

The spelling of 31000012133022 in words is "thirty-one trillion, twelve million, one hundred thirty-three thousand, twenty-two".