312323915873 has 2 divisors, whose sum is σ = 312323915874. Its totient is φ = 312323915872.

The previous prime is 312323915857. The next prime is 312323915909. The reversal of 312323915873 is 378519323213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217316333584 + 95007582289 = 466172^2 + 308233^2 .

It is an emirp because it is prime and its reverse (378519323213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312323915873 - 2⁴ = 312323915857 is a prime.

It is not a weakly prime, because it can be changed into another prime (312323918873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156161957936 + 156161957937.

It is an arithmetic number, because the mean of its divisors is an integer number (156161957937).

Almost surely, 2^312323915873 is an apocalyptic number.

It is an amenable number.

312323915873 is a deficient number, since it is larger than the sum of its proper divisors (1).

312323915873 is an equidigital number, since it uses as much as digits as its factorization.

312323915873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 47.

The spelling of 312323915873 in words is "three hundred twelve billion, three hundred twenty-three million, nine hundred fifteen thousand, eight hundred seventy-three".