31312433422313 has 2 divisors, whose sum is σ = 31312433422314. Its totient is φ = 31312433422312.

The previous prime is 31312433422301. The next prime is 31312433422363. The reversal of 31312433422313 is 31322433421313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27806300756224 + 3506132666089 = 5273168^2 + 1872467^2 .

It is a cyclic number.

It is not a de Polignac number, because 31312433422313 - 2¹⁶ = 31312433356777 is a prime.

It is not a weakly prime, because it can be changed into another prime (31312433422363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656216711156 + 15656216711157.

It is an arithmetic number, because the mean of its divisors is an integer number (15656216711157).

Almost surely, 2^{31312433422313} is an apocalyptic number.

It is an amenable number.

31312433422313 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312433422313 is an equidigital number, since it uses as much as digits as its factorization.

31312433422313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 35.

Adding to 31312433422313 its reverse (31322433421313), we get a palindrome (62634866843626).

It can be divided in two parts, 3131243 and 3422313, that added together give a palindrome (6553556).

The spelling of 31312433422313 in words is "thirty-one trillion, three hundred twelve billion, four hundred thirty-three million, four hundred twenty-two thousand, three hundred thirteen".