231322310320313 has 2 divisors, whose sum is σ = 231322310320314. Its totient is φ = 231322310320312.

The previous prime is 231322310320279. The next prime is 231322310320333. The reversal of 231322310320313 is 313023013223132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230978079349369 + 344230970944 = 15197963^2 + 586712^2 .

It is a cyclic number.

It is not a de Polignac number, because 231322310320313 - 2²⁴ = 231322293543097 is a prime.

It is a super-2 number, since 2×231322310320313² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231322310320333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115661155160156 + 115661155160157.

It is an arithmetic number, because the mean of its divisors is an integer number (115661155160157).

Almost surely, 2^{231322310320313} is an apocalyptic number.

It is an amenable number.

231322310320313 is a deficient number, since it is larger than the sum of its proper divisors (1).

231322310320313 is an equidigital number, since it uses as much as digits as its factorization.

231322310320313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 231322310320313 its reverse (313023013223132), we get a palindrome (544345323543445).

The spelling of 231322310320313 in words is "two hundred thirty-one trillion, three hundred twenty-two billion, three hundred ten million, three hundred twenty thousand, three hundred thirteen".