120556311 has 12 divisors (see below), whose sum is σ = 169648632. Its totient is φ = 76140144.

The previous prime is 120556309. The next prime is 120556339. The reversal of 120556311 is 113655021.

It is not a de Polignac number, because 120556311 - 2¹ = 120556309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120556511) 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, 54576 + ... + 56741.

It is an arithmetic number, because the mean of its divisors is an integer number (14137386).

Almost surely, 2^120556311 is an apocalyptic number.

120556311 is a deficient number, since it is larger than the sum of its proper divisors (49092321).

120556311 is a wasteful number, since it uses less digits than its factorization.

120556311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111358 (or 111339 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 120556311 is about 10979.8137962353. The cubic root of 120556311 is about 494.0034516524.

The spelling of 120556311 in words is "one hundred twenty million, five hundred fifty-six thousand, three hundred eleven".