31011231320022 has 16 divisors (see below), whose sum is σ = 62591476060080. Its totient is φ = 10242241536672.

The previous prime is 31011231319979. The next prime is 31011231320059. The reversal of 31011231320022 is 22002313211013.

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, 23708891793 + ... + 23708893100.

It is an arithmetic number, because the mean of its divisors is an integer number (3911967253755).

Almost surely, 2^{31011231320022} is an apocalyptic number.

31011231320022 is an abundant number, since it is smaller than the sum of its proper divisors (31580244740058).

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

31011231320022 is a wasteful number, since it uses less digits than its factorization.

31011231320022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47417785007.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31011231320022 its reverse (22002313211013), we get a palindrome (53013544531035).

The spelling of 31011231320022 in words is "thirty-one trillion, eleven billion, two hundred thirty-one million, three hundred twenty thousand, twenty-two".