113772321 has 36 divisors (see below), whose sum is σ = 179624016. Its totient is φ = 69357600.

The previous prime is 113772311. The next prime is 113772331. The reversal of 113772321 is 123277311.

It is an interprime number because it is at equal distance from previous prime (113772311) and next prime (113772331).

It is not a de Polignac number, because 113772321 - 2⁹ = 113771809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113772301) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 198966 + ... + 199536.

It is an arithmetic number, because the mean of its divisors is an integer number (4989556).

Almost surely, 2^113772321 is an apocalyptic number.

It is an amenable number.

113772321 is a deficient number, since it is larger than the sum of its proper divisors (65851695).

113772321 is a wasteful number, since it uses less digits than its factorization.

113772321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 718 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 113772321 is about 10666.4108771414. The cubic root of 113772321 is about 484.5577447174.

The spelling of 113772321 in words is "one hundred thirteen million, seven hundred seventy-two thousand, three hundred twenty-one".