31112302021002 has 24 divisors (see below), whose sum is σ = 68681874274884. Its totient is φ = 10175092484544.

The previous prime is 31112302020971. The next prime is 31112302021027. The reversal of 31112302021002 is 20012020321113.

31112302021002 is a `hidden beast` number, since 311 + 1 + 230 + 20 + 2 + 100 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31079275864641 + 33026156361 = 5574879^2 + 181731^2 .

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 11 ways as a sum of consecutive naturals, for example, 16306237003 + ... + 16306238910.

Almost surely, 2^{31112302021002} is an apocalyptic number.

31112302021002 is an abundant number, since it is smaller than the sum of its proper divisors (37569572253882).

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

31112302021002 is a wasteful number, since it uses less digits than its factorization.

31112302021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32612475974 (or 32612475971 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31112302021002 its reverse (20012020321113), we get a palindrome (51124322342115).

The spelling of 31112302021002 in words is "thirty-one trillion, one hundred twelve billion, three hundred two million, twenty-one thousand, two".