231373013 has 8 divisors (see below), whose sum is σ = 243690720. Its totient is φ = 219069360.

The previous prime is 231373003. The next prime is 231373027. The reversal of 231373013 is 310373132.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 231373013 - 2⁴ = 231372997 is a prime.

It is a super-2 number, since 2×231373013² = 107066942289396338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231373013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231373003) 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, 58643 + ... + 62463.

It is an arithmetic number, because the mean of its divisors is an integer number (30461340).

Almost surely, 2^231373013 is an apocalyptic number.

It is an amenable number.

231373013 is a deficient number, since it is larger than the sum of its proper divisors (12317707).

231373013 is a wasteful number, since it uses less digits than its factorization.

231373013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 231373013 is about 15210.9504305287. The cubic root of 231373013 is about 613.9093304772.

The spelling of 231373013 in words is "two hundred thirty-one million, three hundred seventy-three thousand, thirteen".