231324313 has 4 divisors (see below), whose sum is σ = 252353808. Its totient is φ = 210294820.

The previous prime is 231324311. The next prime is 231324341. The reversal of 231324313 is 313423132.

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 231324313 - 2¹ = 231324311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231324311) 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, 10514731 + ... + 10514752.

It is an arithmetic number, because the mean of its divisors is an integer number (63088452).

Almost surely, 2^231324313 is an apocalyptic number.

It is an amenable number.

231324313 is a deficient number, since it is larger than the sum of its proper divisors (21029495).

231324313 is a wasteful number, since it uses less digits than its factorization.

231324313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21029494.

The product of its digits is 1296, while the sum is 22.

The square root of 231324313 is about 15209.3495258673. The cubic root of 231324313 is about 613.8662550383.

Adding to 231324313 its reverse (313423132), we get a palindrome (544747445).

The spelling of 231324313 in words is "two hundred thirty-one million, three hundred twenty-four thousand, three hundred thirteen".