12603856019 has 2 divisors, whose sum is σ = 12603856020. Its totient is φ = 12603856018.

The previous prime is 12603855989. The next prime is 12603856073. The reversal of 12603856019 is 91065830621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12603856019 - 2¹⁶ = 12603790483 is a prime.

It is a super-2 number, since 2×12603856019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12603856079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6301928009 + 6301928010.

It is an arithmetic number, because the mean of its divisors is an integer number (6301928010).

Almost surely, 2^12603856019 is an apocalyptic number.

12603856019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12603856019 is an equidigital number, since it uses as much as digits as its factorization.

12603856019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 12603856019 in words is "twelve billion, six hundred three million, eight hundred fifty-six thousand, nineteen".