12315948047017 has 2 divisors, whose sum is σ = 12315948047018. Its totient is φ = 12315948047016.

The previous prime is 12315948047003. The next prime is 12315948047021. The reversal of 12315948047017 is 71074084951321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8485359265296 + 3830588781721 = 2912964^2 + 1957189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12315948047017 is a prime.

It is not a weakly prime, because it can be changed into another prime (12315948047057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6157974023508 + 6157974023509.

It is an arithmetic number, because the mean of its divisors is an integer number (6157974023509).

Almost surely, 2^{12315948047017} is an apocalyptic number.

It is an amenable number.

12315948047017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12315948047017 is an equidigital number, since it uses as much as digits as its factorization.

12315948047017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 12315948047017 in words is "twelve trillion, three hundred fifteen billion, nine hundred forty-eight million, forty-seven thousand, seventeen".