12197823666271 has 2 divisors, whose sum is σ = 12197823666272. Its totient is φ = 12197823666270.

The previous prime is 12197823666251. The next prime is 12197823666283. The reversal of 12197823666271 is 17266632879121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12197823666271 - 2⁵ = 12197823666239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12197823666241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6098911833135 + 6098911833136.

It is an arithmetic number, because the mean of its divisors is an integer number (6098911833136).

Almost surely, 2^{12197823666271} is an apocalyptic number.

12197823666271 is a deficient number, since it is larger than the sum of its proper divisors (1).

12197823666271 is an equidigital number, since it uses as much as digits as its factorization.

12197823666271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18289152, while the sum is 61.

The spelling of 12197823666271 in words is "twelve trillion, one hundred ninety-seven billion, eight hundred twenty-three million, six hundred sixty-six thousand, two hundred seventy-one".