31122320102112 has 48 divisors (see below), whose sum is σ = 81986823756432. Its totient is φ = 10337188162560.

The previous prime is 31122320102053. The next prime is 31122320102117. The reversal of 31122320102112 is 21120102322113.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31122320102117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576825043 + ... + 576878994.

It is an arithmetic number, because the mean of its divisors is an integer number (1708058828259).

Almost surely, 2^{31122320102112} is an apocalyptic number.

31122320102112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31122320102112 is an abundant number, since it is smaller than the sum of its proper divisors (50864503654320).

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

31122320102112 is a wasteful number, since it uses less digits than its factorization.

31122320102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153704331 (or 1153704323 counting only the distinct ones).

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

Adding to 31122320102112 its reverse (21120102322113), we get a palindrome (52242422424225).

The spelling of 31122320102112 in words is "thirty-one trillion, one hundred twenty-two billion, three hundred twenty million, one hundred two thousand, one hundred twelve".