12997232497 has 2 divisors, whose sum is σ = 12997232498. Its totient is φ = 12997232496.

The previous prime is 12997232459. The next prime is 12997232527. The reversal of 12997232497 is 79423279921.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12090981681 + 906250816 = 109959^2 + 30104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12997232497 is a prime.

It is not a weakly prime, because it can be changed into another prime (12997232447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6498616248 + 6498616249.

It is an arithmetic number, because the mean of its divisors is an integer number (6498616249).

Almost surely, 2^12997232497 is an apocalyptic number.

It is an amenable number.

12997232497 is a deficient number, since it is larger than the sum of its proper divisors (1).

12997232497 is an equidigital number, since it uses as much as digits as its factorization.

12997232497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 55.

The spelling of 12997232497 in words is "twelve billion, nine hundred ninety-seven million, two hundred thirty-two thousand, four hundred ninety-seven".