120557923 has 4 divisors (see below), whose sum is σ = 120675888. Its totient is φ = 120439960.

The previous prime is 120557909. The next prime is 120557933. The reversal of 120557923 is 329755021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120557923 - 2⁵ = 120557891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120557903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57436 + ... + 59497.

It is an arithmetic number, because the mean of its divisors is an integer number (30168972).

Almost surely, 2^120557923 is an apocalyptic number.

120557923 is a deficient number, since it is larger than the sum of its proper divisors (117965).

120557923 is a wasteful number, since it uses less digits than its factorization.

120557923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117964.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 120557923 is about 10979.8872034279. The cubic root of 120557923 is about 494.0056534728.

The spelling of 120557923 in words is "one hundred twenty million, five hundred fifty-seven thousand, nine hundred twenty-three".