231346131 has 8 divisors (see below), whose sum is σ = 310816704. Its totient is φ = 153053160.

The previous prime is 231346127. The next prime is 231346133. The reversal of 231346131 is 131643132.

It is a happy number.

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

It is not a de Polignac number, because 231346131 - 2² = 231346127 is a prime.

It is a super-2 number, since 2×231346131² = 107042064657338322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231346133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293941 + ... + 294726.

It is an arithmetic number, because the mean of its divisors is an integer number (38852088).

Almost surely, 2^231346131 is an apocalyptic number.

231346131 is a deficient number, since it is larger than the sum of its proper divisors (79470573).

231346131 is a wasteful number, since it uses less digits than its factorization.

231346131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588801.

The product of its digits is 1296, while the sum is 24.

The square root of 231346131 is about 15210.0667651395. The cubic root of 231346131 is about 613.8855539362.

Adding to 231346131 its reverse (131643132), we get a palindrome (362989263).

The spelling of 231346131 in words is "two hundred thirty-one million, three hundred forty-six thousand, one hundred thirty-one".