12903112909 has 2 divisors, whose sum is σ = 12903112910. Its totient is φ = 12903112908.

The previous prime is 12903112891. The next prime is 12903113011. The reversal of 12903112909 is 90921130921.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11616097284 + 1287015625 = 107778^2 + 35875^2 .

It is an emirp because it is prime and its reverse (90921130921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12903112909 - 2²⁹ = 12366241997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12903142909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6451556454 + 6451556455.

It is an arithmetic number, because the mean of its divisors is an integer number (6451556455).

Almost surely, 2^12903112909 is an apocalyptic number.

It is an amenable number.

12903112909 is a deficient number, since it is larger than the sum of its proper divisors (1).

12903112909 is an equidigital number, since it uses as much as digits as its factorization.

12903112909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 37.

The spelling of 12903112909 in words is "twelve billion, nine hundred three million, one hundred twelve thousand, nine hundred nine".