12911097503 has 2 divisors, whose sum is σ = 12911097504. Its totient is φ = 12911097502.

The previous prime is 12911097473. The next prime is 12911097517. The reversal of 12911097503 is 30579011921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12911097503 - 2⁶ = 12911097439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12911097523) 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, 6455548751 + 6455548752.

It is an arithmetic number, because the mean of its divisors is an integer number (6455548752).

Almost surely, 2^12911097503 is an apocalyptic number.

12911097503 is a deficient number, since it is larger than the sum of its proper divisors (1).

12911097503 is an equidigital number, since it uses as much as digits as its factorization.

12911097503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 38.

The spelling of 12911097503 in words is "twelve billion, nine hundred eleven million, ninety-seven thousand, five hundred three".