113321112020 has 12 divisors (see below), whose sum is σ = 237974335284. Its totient is φ = 45328444800.

The previous prime is 113321111999. The next prime is 113321112043. The reversal of 113321112020 is 20211123311.

It can be written as a sum of positive squares in 2 ways, for example, as 40146533956 + 73174578064 = 200366^2 + 270508^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 113321112020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2833027781 + ... + 2833027820.

It is an arithmetic number, because the mean of its divisors is an integer number (19831194607).

Almost surely, 2^113321112020 is an apocalyptic number.

113321112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113321112020 is an abundant number, since it is smaller than the sum of its proper divisors (124653223264).

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

113321112020 is a wasteful number, since it uses less digits than its factorization.

113321112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5666055610 (or 5666055608 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 113321112020 its reverse (20211123311), we get a palindrome (133532235331).

The spelling of 113321112020 in words is "one hundred thirteen billion, three hundred twenty-one million, one hundred twelve thousand, twenty".