12365554099 has 2 divisors, whose sum is σ = 12365554100. Its totient is φ = 12365554098.

The previous prime is 12365554049. The next prime is 12365554139. The reversal of 12365554099 is 99045556321.

It is a strong prime.

It is an emirp because it is prime and its reverse (99045556321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12365554099 is a prime.

It is not a weakly prime, because it can be changed into another prime (12365554049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6182777049 + 6182777050.

It is an arithmetic number, because the mean of its divisors is an integer number (6182777050).

Almost surely, 2^12365554099 is an apocalyptic number.

12365554099 is a deficient number, since it is larger than the sum of its proper divisors (1).

12365554099 is an equidigital number, since it uses as much as digits as its factorization.

12365554099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458000, while the sum is 49.

The spelling of 12365554099 in words is "twelve billion, three hundred sixty-five million, five hundred fifty-four thousand, ninety-nine".