12556039103 has 2 divisors, whose sum is σ = 12556039104. Its totient is φ = 12556039102.

The previous prime is 12556039033. The next prime is 12556039169. The reversal of 12556039103 is 30193065521.

It is a strong prime.

It is an emirp because it is prime and its reverse (30193065521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12556039103 - 2¹⁶ = 12555973567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12556039193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6278019551 + 6278019552.

It is an arithmetic number, because the mean of its divisors is an integer number (6278019552).

Almost surely, 2^12556039103 is an apocalyptic number.

12556039103 is a deficient number, since it is larger than the sum of its proper divisors (1).

12556039103 is an equidigital number, since it uses as much as digits as its factorization.

12556039103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 35.

The spelling of 12556039103 in words is "twelve billion, five hundred fifty-six million, thirty-nine thousand, one hundred three".