113456021 has 12 divisors (see below), whose sum is σ = 132181632. Its totient is φ = 97099128.

The previous prime is 113456017. The next prime is 113456039. The reversal of 113456021 is 120654311.

It is not a de Polignac number, because 113456021 - 2² = 113456017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113456041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40946 + ... + 43628.

It is an arithmetic number, because the mean of its divisors is an integer number (11015136).

Almost surely, 2^113456021 is an apocalyptic number.

It is an amenable number.

113456021 is a deficient number, since it is larger than the sum of its proper divisors (18725611).

113456021 is an equidigital number, since it uses as much as digits as its factorization.

113456021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560 (or 3553 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 113456021 is about 10651.5736396084. The cubic root of 113456021 is about 484.1082860528.

The spelling of 113456021 in words is "one hundred thirteen million, four hundred fifty-six thousand, twenty-one".