12308999 has 2 divisors, whose sum is σ = 12309000. Its totient is φ = 12308998.

The previous prime is 12308987. The next prime is 12309001. The reversal of 12308999 is 99980321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12308999 - 2⁸ = 12308743 is a prime.

It is a super-2 number, since 2×12308999² = 303022912764002, which contains 22 as substring.

Together with 12309001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12308909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6154499 + 6154500.

It is an arithmetic number, because the mean of its divisors is an integer number (6154500).

Almost surely, 2^12308999 is an apocalyptic number.

12308999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12308999 is an equidigital number, since it uses as much as digits as its factorization.

12308999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 12308999 is about 3508.4183045925. The cubic root of 12308999 is about 230.8913052217.

The spelling of 12308999 in words is "twelve million, three hundred eight thousand, nine hundred ninety-nine".