311022413321 has 2 divisors, whose sum is σ = 311022413322. Its totient is φ = 311022413320.

The previous prime is 311022413311. The next prime is 311022413347. The reversal of 311022413321 is 123314220113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251943763600 + 59078649721 = 501940^2 + 243061^2 .

It is a cyclic number.

It is not a de Polignac number, because 311022413321 - 2¹⁰ = 311022412297 is a prime.

It is not a weakly prime, because it can be changed into another prime (311022413311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155511206660 + 155511206661.

It is an arithmetic number, because the mean of its divisors is an integer number (155511206661).

Almost surely, 2^311022413321 is an apocalyptic number.

It is an amenable number.

311022413321 is a deficient number, since it is larger than the sum of its proper divisors (1).

311022413321 is an equidigital number, since it uses as much as digits as its factorization.

311022413321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 311022413321 its reverse (123314220113), we get a palindrome (434336633434).

The spelling of 311022413321 in words is "three hundred eleven billion, twenty-two million, four hundred thirteen thousand, three hundred twenty-one".