231130238 has 8 divisors (see below), whose sum is σ = 348492288. Its totient is φ = 114966144.

The previous prime is 231130217. The next prime is 231130253. The reversal of 231130238 is 832031132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299006 + ... + 299777.

It is an arithmetic number, because the mean of its divisors is an integer number (43561536).

Almost surely, 2^231130238 is an apocalyptic number.

231130238 is a deficient number, since it is larger than the sum of its proper divisors (117362050).

231130238 is a wasteful number, since it uses less digits than its factorization.

231130238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598978.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 231130238 is about 15202.9680654798. The cubic root of 231130238 is about 613.6945344716.

The spelling of 231130238 in words is "two hundred thirty-one million, one hundred thirty thousand, two hundred thirty-eight".