113328021 has 8 divisors (see below), whose sum is σ = 153359584. Its totient is φ = 74424240.

The previous prime is 113328013. The next prime is 113328023. The reversal of 113328021 is 120823311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113328021 - 2³ = 113328013 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 (113328023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281710 + ... + 282111.

It is an arithmetic number, because the mean of its divisors is an integer number (19169948).

Almost surely, 2^113328021 is an apocalyptic number.

It is an amenable number.

113328021 is a deficient number, since it is larger than the sum of its proper divisors (40031563).

113328021 is an equidigital number, since it uses as much as digits as its factorization.

113328021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563891.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 113328021 is about 10645.5634421105. The cubic root of 113328021 is about 483.9261620962.

The spelling of 113328021 in words is "one hundred thirteen million, three hundred twenty-eight thousand, twenty-one".