113221375720 has 64 divisors (see below), whose sum is σ = 257561130240. Its totient is φ = 44789472000.

The previous prime is 113221375699. The next prime is 113221375723. The reversal of 113221375720 is 27573122311.

It is not an unprimeable number, because it can be changed into a prime (113221375723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3665059 + ... + 3695821.

It is an arithmetic number, because the mean of its divisors is an integer number (4024392660).

Almost surely, 2^113221375720 is an apocalyptic number.

113221375720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113221375720 is an abundant number, since it is smaller than the sum of its proper divisors (144339754520).

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

113221375720 is a wasteful number, since it uses less digits than its factorization.

113221375720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31786 (or 31782 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The spelling of 113221375720 in words is "one hundred thirteen billion, two hundred twenty-one million, three hundred seventy-five thousand, seven hundred twenty".