118242331 has 2 divisors, whose sum is σ = 118242332. Its totient is φ = 118242330.

The previous prime is 118242317. The next prime is 118242349. The reversal of 118242331 is 133242811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118242331 - 2⁹ = 118241819 is a prime.

It is a super-2 number, since 2×118242331² = 27962497680627122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 118242296 and 118242305.

It is not a weakly prime, because it can be changed into another prime (118242391) 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 as a sum of consecutive naturals, namely, 59121165 + 59121166.

It is an arithmetic number, because the mean of its divisors is an integer number (59121166).

Almost surely, 2^118242331 is an apocalyptic number.

118242331 is a deficient number, since it is larger than the sum of its proper divisors (1).

118242331 is an equidigital number, since it uses as much as digits as its factorization.

118242331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 25.

The square root of 118242331 is about 10873.9289587527. The cubic root of 118242331 is about 490.8223467309.

The spelling of 118242331 in words is "one hundred eighteen million, two hundred forty-two thousand, three hundred thirty-one".