12997232447 has 2 divisors, whose sum is σ = 12997232448. Its totient is φ = 12997232446.

The previous prime is 12997232431. The next prime is 12997232459. The reversal of 12997232447 is 74423279921.

12997232447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12997232447 - 2⁴ = 12997232431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12997232395 and 12997232404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12997232497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6498616223 + 6498616224.

It is an arithmetic number, because the mean of its divisors is an integer number (6498616224).

Almost surely, 2^12997232447 is an apocalyptic number.

12997232447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12997232447 is an equidigital number, since it uses as much as digits as its factorization.

12997232447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 50.

The spelling of 12997232447 in words is "twelve billion, nine hundred ninety-seven million, two hundred thirty-two thousand, four hundred forty-seven".