311204014012321 has 16 divisors (see below), whose sum is σ = 331611292731600. Its totient is φ = 291030224209920.

The previous prime is 311204014012259. The next prime is 311204014012363. The reversal of 311204014012321 is 123210410402113.

It can be written as a sum of positive squares in 8 ways, for example, as 21776782233600 + 289427231778721 = 4666560^2 + 17012561^2 .

It is a cyclic number.

It is not a de Polignac number, because 311204014012321 - 2⁷ = 311204014012193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311204014012621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474618261 + ... + 475273501.

It is an arithmetic number, because the mean of its divisors is an integer number (20725705795725).

Almost surely, 2^{311204014012321} is an apocalyptic number.

It is an amenable number.

311204014012321 is a deficient number, since it is larger than the sum of its proper divisors (20407278719279).

311204014012321 is a wasteful number, since it uses less digits than its factorization.

311204014012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833364.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 311204014012321 its reverse (123210410402113), we get a palindrome (434414424414434).

The spelling of 311204014012321 in words is "three hundred eleven trillion, two hundred four billion, fourteen million, twelve thousand, three hundred twenty-one".