311431010390431 has 2 divisors, whose sum is σ = 311431010390432. Its totient is φ = 311431010390430.

The previous prime is 311431010390411. The next prime is 311431010390509. The reversal of 311431010390431 is 134093010134113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311431010390431 - 2¹¹ = 311431010388383 is a prime.

It is a super-2 number, since 2×311431010390431² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311431010390411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155715505195215 + 155715505195216.

It is an arithmetic number, because the mean of its divisors is an integer number (155715505195216).

Almost surely, 2^{311431010390431} is an apocalyptic number.

311431010390431 is a deficient number, since it is larger than the sum of its proper divisors (1).

311431010390431 is an equidigital number, since it uses as much as digits as its factorization.

311431010390431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 311431010390431 in words is "three hundred eleven trillion, four hundred thirty-one billion, ten million, three hundred ninety thousand, four hundred thirty-one".