231470313 has 4 divisors (see below), whose sum is σ = 308627088. Its totient is φ = 154313540.

The previous prime is 231470299. The next prime is 231470353. The reversal of 231470313 is 313074132.

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 231470313 - 2⁹ = 231469801 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231470353) 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, 38578383 + ... + 38578388.

It is an arithmetic number, because the mean of its divisors is an integer number (77156772).

Almost surely, 2^231470313 is an apocalyptic number.

It is an amenable number.

231470313 is a deficient number, since it is larger than the sum of its proper divisors (77156775).

231470313 is an equidigital number, since it uses as much as digits as its factorization.

231470313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77156774.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 231470313 is about 15214.1484480729. The cubic root of 231470313 is about 613.9953748056.

It can be divided in two parts, 2314 and 70313, that added together give a palindrome (72627).

The spelling of 231470313 in words is "two hundred thirty-one million, four hundred seventy thousand, three hundred thirteen".