31120311112002 has 96 divisors (see below), whose sum is σ = 81127817147520. Its totient is φ = 8422273935360.

The previous prime is 31120311111971. The next prime is 31120311112043. The reversal of 31120311112002 is 20021111302113.

31120311112002 is a `hidden beast` number, since 31 + 120 + 311 + 1 + 1 + 200 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14970658 + ... + 16922210.

It is an arithmetic number, because the mean of its divisors is an integer number (845081428620).

Almost surely, 2^{31120311112002} is an apocalyptic number.

31120311112002 is an abundant number, since it is smaller than the sum of its proper divisors (50007506035518).

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

31120311112002 is a wasteful number, since it uses less digits than its factorization.

31120311112002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958248 (or 1958245 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 31120311112002 its reverse (20021111302113), we get a palindrome (51141422414115).

The spelling of 31120311112002 in words is "thirty-one trillion, one hundred twenty billion, three hundred eleven million, one hundred twelve thousand, two".