118556123 has 16 divisors (see below), whose sum is σ = 139128000. Its totient is φ = 98928000.

The previous prime is 118556111. The next prime is 118556129. The reversal of 118556123 is 321655811.

It is a cyclic number.

It is not a de Polignac number, because 118556123 - 2¹⁴ = 118539739 is a prime.

It is a super-2 number, since 2×118556123² = 28111108601582258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118556123.

It is not an unprimeable number, because it can be changed into a prime (118556129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41753 + ... + 44501.

It is an arithmetic number, because the mean of its divisors is an integer number (8695500).

Almost surely, 2^118556123 is an apocalyptic number.

118556123 is a deficient number, since it is larger than the sum of its proper divisors (20571877).

118556123 is a wasteful number, since it uses less digits than its factorization.

118556123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918.

The product of its digits is 7200, while the sum is 32.

The square root of 118556123 is about 10888.3480381553. The cubic root of 118556123 is about 491.2561453606.

The spelling of 118556123 in words is "one hundred eighteen million, five hundred fifty-six thousand, one hundred twenty-three".