313023013231 has 2 divisors, whose sum is σ = 313023013232. Its totient is φ = 313023013230.

The previous prime is 313023013213. The next prime is 313023013271. The reversal of 313023013231 is 132310320313.

Together with previous prime (313023013213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313023013231 - 2⁷ = 313023013103 is a prime.

It is a super-2 number, since 2×313023013231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313023013201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156511506615 + 156511506616.

It is an arithmetic number, because the mean of its divisors is an integer number (156511506616).

Almost surely, 2^313023013231 is an apocalyptic number.

313023013231 is a deficient number, since it is larger than the sum of its proper divisors (1).

313023013231 is an equidigital number, since it uses as much as digits as its factorization.

313023013231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 313023013231 its reverse (132310320313), we get a palindrome (445333333544).

The spelling of 313023013231 in words is "three hundred thirteen billion, twenty-three million, thirteen thousand, two hundred thirty-one".