312342303241391 has 2 divisors, whose sum is σ = 312342303241392. Its totient is φ = 312342303241390.

The previous prime is 312342303241349. The next prime is 312342303241477. The reversal of 312342303241391 is 193142303243213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312342303241391 is a prime.

It is a super-2 number, since 2×312342303241391² (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 (312342303240391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156171151620695 + 156171151620696.

It is an arithmetic number, because the mean of its divisors is an integer number (156171151620696).

Almost surely, 2^{312342303241391} is an apocalyptic number.

312342303241391 is a deficient number, since it is larger than the sum of its proper divisors (1).

312342303241391 is an equidigital number, since it uses as much as digits as its factorization.

312342303241391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 312342303241391 in words is "three hundred twelve trillion, three hundred forty-two billion, three hundred three million, two hundred forty-one thousand, three hundred ninety-one".