311304403093 has 2 divisors, whose sum is σ = 311304403094. Its totient is φ = 311304403092.

The previous prime is 311304403063. The next prime is 311304403159. The reversal of 311304403093 is 390304403113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282575170084 + 28729233009 = 531578^2 + 169497^2 .

It is a cyclic number.

It is not a de Polignac number, because 311304403093 - 2²⁵ = 311270848661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311304403063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155652201546 + 155652201547.

It is an arithmetic number, because the mean of its divisors is an integer number (155652201547).

Almost surely, 2^311304403093 is an apocalyptic number.

It is an amenable number.

311304403093 is a deficient number, since it is larger than the sum of its proper divisors (1).

311304403093 is an equidigital number, since it uses as much as digits as its factorization.

311304403093 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 31.

The spelling of 311304403093 in words is "three hundred eleven billion, three hundred four million, four hundred three thousand, ninety-three".