118502608831 has 4 divisors (see below), whose sum is σ = 122325273664. Its totient is φ = 114679944000.

The previous prime is 118502608793. The next prime is 118502608871. The reversal of 118502608831 is 138806205811.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118502608831 is a prime.

It is a super-2 number, since 2×118502608831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118502608871) 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, 1911332370 + ... + 1911332431.

It is an arithmetic number, because the mean of its divisors is an integer number (30581318416).

Almost surely, 2^118502608831 is an apocalyptic number.

118502608831 is a deficient number, since it is larger than the sum of its proper divisors (3822664833).

118502608831 is an equidigital number, since it uses as much as digits as its factorization.

118502608831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822664832.

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 118502608831 in words is "one hundred eighteen billion, five hundred two million, six hundred eight thousand, eight hundred thirty-one".