118316831 has 2 divisors, whose sum is σ = 118316832. Its totient is φ = 118316830.

The previous prime is 118316791. The next prime is 118316837. The reversal of 118316831 is 138613811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118316831 - 2⁶ = 118316767 is a prime.

It is a super-2 number, since 2×118316831² = 27997744995765122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118316837) 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 as a sum of consecutive naturals, namely, 59158415 + 59158416.

It is an arithmetic number, because the mean of its divisors is an integer number (59158416).

Almost surely, 2^118316831 is an apocalyptic number.

118316831 is a deficient number, since it is larger than the sum of its proper divisors (1).

118316831 is an equidigital number, since it uses as much as digits as its factorization.

118316831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 32.

The square root of 118316831 is about 10877.3540440679. The cubic root of 118316831 is about 490.9254079261.

The spelling of 118316831 in words is "one hundred eighteen million, three hundred sixteen thousand, eight hundred thirty-one".