120553101 has 24 divisors (see below), whose sum is σ = 178790976. Its totient is φ = 78247680.

The previous prime is 120553093. The next prime is 120553127. The reversal of 120553101 is 101355021.

120553101 is a `hidden beast` number, since 12 + 0 + 553 + 101 = 666.

It is not a de Polignac number, because 120553101 - 2³ = 120553093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120553201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51901 + ... + 54173.

It is an arithmetic number, because the mean of its divisors is an integer number (7449624).

Almost surely, 2^120553101 is an apocalyptic number.

It is an amenable number.

120553101 is a deficient number, since it is larger than the sum of its proper divisors (58237875).

120553101 is a wasteful number, since it uses less digits than its factorization.

120553101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433 (or 2430 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 120553101 is about 10979.6676179200. The cubic root of 120553101 is about 493.9990670758. Note that the first 3 decimals are identical.

The spelling of 120553101 in words is "one hundred twenty million, five hundred fifty-three thousand, one hundred one".