31113232120022 has 32 divisors (see below), whose sum is σ = 51906580639200. Its totient is φ = 13893791355648.

The previous prime is 31113232119881. The next prime is 31113232120049. The reversal of 31113232120022 is 22002123231113.

It is a super-2 number, since 2×31113232120022² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31113232120022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90169247 + ... + 90513642.

It is an arithmetic number, because the mean of its divisors is an integer number (1622080644975).

Almost surely, 2^{31113232120022} is an apocalyptic number.

31113232120022 is a deficient number, since it is larger than the sum of its proper divisors (20793348519178).

31113232120022 is a wasteful number, since it uses less digits than its factorization.

31113232120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180683120.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31113232120022 its reverse (22002123231113), we get a palindrome (53115355351135).

The spelling of 31113232120022 in words is "thirty-one trillion, one hundred thirteen billion, two hundred thirty-two million, one hundred twenty thousand, twenty-two".