312885371387 has 2 divisors, whose sum is σ = 312885371388. Its totient is φ = 312885371386.

The previous prime is 312885371291. The next prime is 312885371389. The reversal of 312885371387 is 783173588213.

It is a strong prime.

It is an emirp because it is prime and its reverse (783173588213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312885371387 - 2²⁸ = 312616935931 is a prime.

Together with 312885371389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312885371389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156442685693 + 156442685694.

It is an arithmetic number, because the mean of its divisors is an integer number (156442685694).

Almost surely, 2^312885371387 is an apocalyptic number.

312885371387 is a deficient number, since it is larger than the sum of its proper divisors (1).

312885371387 is an equidigital number, since it uses as much as digits as its factorization.

312885371387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 56.

The spelling of 312885371387 in words is "three hundred twelve billion, eight hundred eighty-five million, three hundred seventy-one thousand, three hundred eighty-seven".