231310687 has 12 divisors (see below), whose sum is σ = 249200496. Its totient is φ = 214618880.

The previous prime is 231310637. The next prime is 231310771. The reversal of 231310687 is 786013132.

It is not a de Polignac number, because 231310687 - 2⁷ = 231310559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231310627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14883 + ... + 26155.

It is an arithmetic number, because the mean of its divisors is an integer number (20766708).

Almost surely, 2^231310687 is an apocalyptic number.

231310687 is a deficient number, since it is larger than the sum of its proper divisors (17889809).

231310687 is a wasteful number, since it uses less digits than its factorization.

231310687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11378 (or 11361 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 231310687 is about 15208.9015711195. The cubic root of 231310687 is about 613.8542016780.

The spelling of 231310687 in words is "two hundred thirty-one million, three hundred ten thousand, six hundred eighty-seven".