118331213 has 16 divisors (see below), whose sum is σ = 158879616. Its totient is φ = 85112640.

The previous prime is 118331209. The next prime is 118331261. The reversal of 118331213 is 312133811.

It is a cyclic number.

It is not a de Polignac number, because 118331213 - 2² = 118331209 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118331263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58106 + ... + 60107.

It is an arithmetic number, because the mean of its divisors is an integer number (9929976).

Almost surely, 2^118331213 is an apocalyptic number.

118331213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

118331213 is a deficient number, since it is larger than the sum of its proper divisors (40548403).

118331213 is a wasteful number, since it uses less digits than its factorization.

118331213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118244.

The product of its digits is 432, while the sum is 23.

The square root of 118331213 is about 10878.0151222546. The cubic root of 118331213 is about 490.9452985962.

The spelling of 118331213 in words is "one hundred eighteen million, three hundred thirty-one thousand, two hundred thirteen".