12297866309 has 2 divisors, whose sum is σ = 12297866310. Its totient is φ = 12297866308.

The previous prime is 12297866303. The next prime is 12297866393. The reversal of 12297866309 is 90366879221.

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., 8959569025 + 3338297284 = 94655^2 + 57778^2 .

It is a cyclic number.

It is not a de Polignac number, because 12297866309 - 2⁴ = 12297866293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12297866303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6148933154 + 6148933155.

It is an arithmetic number, because the mean of its divisors is an integer number (6148933155).

Almost surely, 2^12297866309 is an apocalyptic number.

It is an amenable number.

12297866309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12297866309 is an equidigital number, since it uses as much as digits as its factorization.

12297866309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 12297866309 in words is "twelve billion, two hundred ninety-seven million, eight hundred sixty-six thousand, three hundred nine".