118230786831 has 16 divisors (see below), whose sum is σ = 158550652800. Its totient is φ = 78365884128.

The previous prime is 118230786799. The next prime is 118230786841. The reversal of 118230786831 is 138687032811.

It is a happy number.

It is not a de Polignac number, because 118230786831 - 2⁵ = 118230786799 is a prime.

It is a super-2 number, since 2×118230786831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118230786841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3498925 + ... + 3532553.

It is an arithmetic number, because the mean of its divisors is an integer number (9909415800).

Almost surely, 2^118230786831 is an apocalyptic number.

118230786831 is a deficient number, since it is larger than the sum of its proper divisors (40319865969).

118230786831 is a wasteful number, since it uses less digits than its factorization.

118230786831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40358.

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 118230786831 in words is "one hundred eighteen billion, two hundred thirty million, seven hundred eighty-six thousand, eight hundred thirty-one".