311455022054489 has 2 divisors, whose sum is σ = 311455022054490. Its totient is φ = 311455022054488.

The previous prime is 311455022054389. The next prime is 311455022054507. The reversal of 311455022054489 is 984450220554113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311439374046025 + 15648008464 = 17647645^2 + 125092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311455022054489 is a prime.

It is a super-2 number, since 2×311455022054489² (a number of 30 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 311455022054489.

It is not a weakly prime, because it can be changed into another prime (311455022054389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155727511027244 + 155727511027245.

It is an arithmetic number, because the mean of its divisors is an integer number (155727511027245).

Almost surely, 2^{311455022054489} is an apocalyptic number.

It is an amenable number.

311455022054489 is a deficient number, since it is larger than the sum of its proper divisors (1).

311455022054489 is an equidigital number, since it uses as much as digits as its factorization.

311455022054489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912000, while the sum is 53.

The spelling of 311455022054489 in words is "three hundred eleven trillion, four hundred fifty-five billion, twenty-two million, fifty-four thousand, four hundred eighty-nine".