311154251413 has 2 divisors, whose sum is σ = 311154251414. Its totient is φ = 311154251412.

The previous prime is 311154251371. The next prime is 311154251417. The reversal of 311154251413 is 314152451113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310380465924 + 773785489 = 557118^2 + 27817^2 .

It is a cyclic number.

It is not a de Polignac number, because 311154251413 - 2¹⁷ = 311154120341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311154251417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155577125706 + 155577125707.

It is an arithmetic number, because the mean of its divisors is an integer number (155577125707).

Almost surely, 2^311154251413 is an apocalyptic number.

It is an amenable number.

311154251413 is a deficient number, since it is larger than the sum of its proper divisors (1).

311154251413 is an equidigital number, since it uses as much as digits as its factorization.

311154251413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 31.

The spelling of 311154251413 in words is "three hundred eleven billion, one hundred fifty-four million, two hundred fifty-one thousand, four hundred thirteen".