31122021112032 has 48 divisors (see below), whose sum is σ = 81695985219072. Its totient is φ = 10373920713600.

The previous prime is 31122021112027. The next prime is 31122021112081. The reversal of 31122021112032 is 23021112022113.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 10816657 + ... + 13388207.

It is an arithmetic number, because the mean of its divisors is an integer number (1701999692064).

Almost surely, 2^{31122021112032} is an apocalyptic number.

31122021112032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31122021112032 is an abundant number, since it is smaller than the sum of its proper divisors (50573964107040).

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

31122021112032 is a wasteful number, since it uses less digits than its factorization.

31122021112032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697631 (or 2697623 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 31122021112032 its reverse (23021112022113), we get a palindrome (54143133134145).

The spelling of 31122021112032 in words is "thirty-one trillion, one hundred twenty-two billion, twenty-one million, one hundred twelve thousand, thirty-two".