118322231 has 2 divisors, whose sum is σ = 118322232. Its totient is φ = 118322230.

The previous prime is 118322219. The next prime is 118322273. The reversal of 118322231 is 132223811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118322231 - 2⁶ = 118322167 is a prime.

It is a super-2 number, since 2×118322231² = 28000300697634722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 118322197 and 118322206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118322131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59161115 + 59161116.

It is an arithmetic number, because the mean of its divisors is an integer number (59161116).

Almost surely, 2^118322231 is an apocalyptic number.

118322231 is a deficient number, since it is larger than the sum of its proper divisors (1).

118322231 is an equidigital number, since it uses as much as digits as its factorization.

118322231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 118322231 is about 10877.6022633667. The cubic root of 118322231 is about 490.9328764518.

The spelling of 118322231 in words is "one hundred eighteen million, three hundred twenty-two thousand, two hundred thirty-one".