313023133331 has 2 divisors, whose sum is σ = 313023133332. Its totient is φ = 313023133330.

The previous prime is 313023133259. The next prime is 313023133337. The reversal of 313023133331 is 133331320313.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313023133331 - 2²² = 313018939027 is a prime.

It is a super-2 number, since 2×313023133331² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313023133331.

It is not a weakly prime, because it can be changed into another prime (313023133337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156511566665 + 156511566666.

It is an arithmetic number, because the mean of its divisors is an integer number (156511566666).

Almost surely, 2^313023133331 is an apocalyptic number.

313023133331 is a deficient number, since it is larger than the sum of its proper divisors (1).

313023133331 is an equidigital number, since it uses as much as digits as its factorization.

313023133331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 26.

Adding to 313023133331 its reverse (133331320313), we get a palindrome (446354453644).

The spelling of 313023133331 in words is "three hundred thirteen billion, twenty-three million, one hundred thirty-three thousand, three hundred thirty-one".