231023713 has 4 divisors (see below), whose sum is σ = 231096880. Its totient is φ = 230950548.

The previous prime is 231023701. The next prime is 231023731. The reversal of 231023713 is 317320132.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231023713 - 2²⁵ = 197469281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231023743) 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, 31623 + ... + 38236.

It is an arithmetic number, because the mean of its divisors is an integer number (57774220).

Almost surely, 2^231023713 is an apocalyptic number.

It is an amenable number.

231023713 is a deficient number, since it is larger than the sum of its proper divisors (73167).

231023713 is an equidigital number, since it uses as much as digits as its factorization.

231023713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73166.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 231023713 is about 15199.4642339788. The cubic root of 231023713 is about 613.6002386369.

Adding to 231023713 its reverse (317320132), we get a palindrome (548343845).

The spelling of 231023713 in words is "two hundred thirty-one million, twenty-three thousand, seven hundred thirteen".