12315018953 has 2 divisors, whose sum is σ = 12315018954. Its totient is φ = 12315018952.

The previous prime is 12315018871. The next prime is 12315018979. The reversal of 12315018953 is 35981051321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11952611584 + 362407369 = 109328^2 + 19037^2 .

It is a cyclic number.

It is not a de Polignac number, because 12315018953 - 2⁸ = 12315018697 is a prime.

It is not a weakly prime, because it can be changed into another prime (12315218953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6157509476 + 6157509477.

It is an arithmetic number, because the mean of its divisors is an integer number (6157509477).

Almost surely, 2^12315018953 is an apocalyptic number.

It is an amenable number.

12315018953 is a deficient number, since it is larger than the sum of its proper divisors (1).

12315018953 is an equidigital number, since it uses as much as digits as its factorization.

12315018953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 12315018953 in words is "twelve billion, three hundred fifteen million, eighteen thousand, nine hundred fifty-three".