231322310313 has 16 divisors (see below), whose sum is σ = 310255530240. Its totient is φ = 153302229504.

The previous prime is 231322310311. The next prime is 231322310327. The reversal of 231322310313 is 313013223132.

It is not a de Polignac number, because 231322310313 - 2¹ = 231322310311 is a prime.

It is a super-2 number, since 2×231322310313² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231322310311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4308528 + ... + 4361886.

It is an arithmetic number, because the mean of its divisors is an integer number (19390970640).

Almost surely, 2^231322310313 is an apocalyptic number.

It is an amenable number.

231322310313 is a deficient number, since it is larger than the sum of its proper divisors (78933219927).

231322310313 is a wasteful number, since it uses less digits than its factorization.

231322310313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61888.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 231322310313 its reverse (313013223132), we get a palindrome (544335533445).

The spelling of 231322310313 in words is "two hundred thirty-one billion, three hundred twenty-two million, three hundred ten thousand, three hundred thirteen".