12318556319 has 2 divisors, whose sum is σ = 12318556320. Its totient is φ = 12318556318.

The previous prime is 12318556297. The next prime is 12318556351. The reversal of 12318556319 is 91365581321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12318556319 - 2¹⁶ = 12318490783 is a prime.

It is a super-2 number, since 2×12318556319² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12318556319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12318556379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6159278159 + 6159278160.

It is an arithmetic number, because the mean of its divisors is an integer number (6159278160).

Almost surely, 2^12318556319 is an apocalyptic number.

12318556319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12318556319 is an equidigital number, since it uses as much as digits as its factorization.

12318556319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 44.

The spelling of 12318556319 in words is "twelve billion, three hundred eighteen million, five hundred fifty-six thousand, three hundred nineteen".