312132232331291 has 2 divisors, whose sum is σ = 312132232331292. Its totient is φ = 312132232331290.

The previous prime is 312132232331279. The next prime is 312132232331303. The reversal of 312132232331291 is 192133232231213.

It is a balanced prime because it is at equal distance from previous prime (312132232331279) and next prime (312132232331303).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312132232331291 is a prime.

It is not a weakly prime, because it can be changed into another prime (312132232301291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156066116165645 + 156066116165646.

It is an arithmetic number, because the mean of its divisors is an integer number (156066116165646).

Almost surely, 2^{312132232331291} is an apocalyptic number.

312132232331291 is a deficient number, since it is larger than the sum of its proper divisors (1).

312132232331291 is an equidigital number, since it uses as much as digits as its factorization.

312132232331291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 38.

The spelling of 312132232331291 in words is "three hundred twelve trillion, one hundred thirty-two billion, two hundred thirty-two million, three hundred thirty-one thousand, two hundred ninety-one".