231150131 has 4 divisors (see below), whose sum is σ = 231320592. Its totient is φ = 230979672.

The previous prime is 231150113. The next prime is 231150163. The reversal of 231150131 is 131051132.

231150131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231150131 is a prime.

It is a super-2 number, since 2×231150131² = 106860766122634322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231150191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83180 + ... + 85913.

It is an arithmetic number, because the mean of its divisors is an integer number (57830148).

Almost surely, 2^231150131 is an apocalyptic number.

231150131 is a deficient number, since it is larger than the sum of its proper divisors (170461).

231150131 is a wasteful number, since it uses less digits than its factorization.

231150131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170460.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 231150131 is about 15203.6222986498. The cubic root of 231150131 is about 613.7121405267.

The spelling of 231150131 in words is "two hundred thirty-one million, one hundred fifty thousand, one hundred thirty-one".