113210311020 has 72 divisors (see below), whose sum is σ = 336732173904. Its totient is φ = 28413563904.

The previous prime is 113210311013. The next prime is 113210311043. The reversal of 113210311020 is 20113012311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3247087 + ... + 3281766.

Almost surely, 2^113210311020 is an apocalyptic number.

113210311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113210311020 is an abundant number, since it is smaller than the sum of its proper divisors (223521862884).

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

113210311020 is a wasteful number, since it uses less digits than its factorization.

113210311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6528899 (or 6528880 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 113210311020 its reverse (20113012311), we get a palindrome (133323323331).

The spelling of 113210311020 in words is "one hundred thirteen billion, two hundred ten million, three hundred eleven thousand, twenty".