12915290123 has 2 divisors, whose sum is σ = 12915290124. Its totient is φ = 12915290122.

The previous prime is 12915290083. The next prime is 12915290191. The reversal of 12915290123 is 32109251921.

It is a weak prime.

It is an emirp because it is prime and its reverse (32109251921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12915290123 - 2²² = 12911095819 is a prime.

It is a super-2 number, since 2×12915290123² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12915290723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6457645061 + 6457645062.

It is an arithmetic number, because the mean of its divisors is an integer number (6457645062).

Almost surely, 2^12915290123 is an apocalyptic number.

12915290123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12915290123 is an equidigital number, since it uses as much as digits as its factorization.

12915290123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 12915290123 in words is "twelve billion, nine hundred fifteen million, two hundred ninety thousand, one hundred twenty-three".