311346557407 has 2 divisors, whose sum is σ = 311346557408. Its totient is φ = 311346557406.

The previous prime is 311346557399. The next prime is 311346557411. The reversal of 311346557407 is 704755643113.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (704755643113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311346557407 - 2³ = 311346557399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311346557437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155673278703 + 155673278704.

It is an arithmetic number, because the mean of its divisors is an integer number (155673278704).

Almost surely, 2^311346557407 is an apocalyptic number.

311346557407 is a deficient number, since it is larger than the sum of its proper divisors (1).

311346557407 is an equidigital number, since it uses as much as digits as its factorization.

311346557407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 311346557407 in words is "three hundred eleven billion, three hundred forty-six million, five hundred fifty-seven thousand, four hundred seven".