312213314243291 has 2 divisors, whose sum is σ = 312213314243292. Its totient is φ = 312213314243290.

The previous prime is 312213314243231. The next prime is 312213314243333. The reversal of 312213314243291 is 192342413312213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312213314243291 - 2¹⁸ = 312213313981147 is a prime.

It is not a weakly prime, because it can be changed into another prime (312213314243231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156106657121645 + 156106657121646.

It is an arithmetic number, because the mean of its divisors is an integer number (156106657121646).

Almost surely, 2^{312213314243291} is an apocalyptic number.

312213314243291 is a deficient number, since it is larger than the sum of its proper divisors (1).

312213314243291 is an equidigital number, since it uses as much as digits as its factorization.

312213314243291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 41.

The spelling of 312213314243291 in words is "three hundred twelve trillion, two hundred thirteen billion, three hundred fourteen million, two hundred forty-three thousand, two hundred ninety-one".