312131324001317 has 2 divisors, whose sum is σ = 312131324001318. Its totient is φ = 312131324001316.

The previous prime is 312131324001313. The next prime is 312131324001349. The reversal of 312131324001317 is 713100423131213.

It is an a-pointer prime, because the next prime (312131324001349) can be obtained adding 312131324001317 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302510570194561 + 9620753806756 = 17392831^2 + 3101734^2 .

It is a cyclic number.

It is not a de Polignac number, because 312131324001317 - 2² = 312131324001313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312131324001313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156065662000658 + 156065662000659.

It is an arithmetic number, because the mean of its divisors is an integer number (156065662000659).

Almost surely, 2^{312131324001317} is an apocalyptic number.

It is an amenable number.

312131324001317 is a deficient number, since it is larger than the sum of its proper divisors (1).

312131324001317 is an equidigital number, since it uses as much as digits as its factorization.

312131324001317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 312131324001317 in words is "three hundred twelve trillion, one hundred thirty-one billion, three hundred twenty-four million, one thousand, three hundred seventeen".