120557013 has 16 divisors (see below), whose sum is σ = 170496576. Its totient is φ = 75511040.

The previous prime is 120556999. The next prime is 120557027. The reversal of 120557013 is 310755021.

It is an interprime number because it is at equal distance from previous prime (120556999) and next prime (120557027).

It is a cyclic number.

It is not a de Polignac number, because 120557013 - 2¹⁰ = 120555989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120557083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33103 + ... + 36563.

It is an arithmetic number, because the mean of its divisors is an integer number (10656036).

Almost surely, 2^120557013 is an apocalyptic number.

It is an amenable number.

120557013 is a deficient number, since it is larger than the sum of its proper divisors (49939563).

120557013 is a wasteful number, since it uses less digits than its factorization.

120557013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 120557013 is about 10979.8457639440. The cubic root of 120557013 is about 494.0044105121.

The spelling of 120557013 in words is "one hundred twenty million, five hundred fifty-seven thousand, thirteen".