12997232527 has 2 divisors, whose sum is σ = 12997232528. Its totient is φ = 12997232526.

The previous prime is 12997232497. The next prime is 12997232531. The reversal of 12997232527 is 72523279921.

It is a strong prime.

It is an emirp because it is prime and its reverse (72523279921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12997232527 - 2¹¹ = 12997230479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12997292527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6498616263 + 6498616264.

It is an arithmetic number, because the mean of its divisors is an integer number (6498616264).

Almost surely, 2^12997232527 is an apocalyptic number.

12997232527 is a deficient number, since it is larger than the sum of its proper divisors (1).

12997232527 is an equidigital number, since it uses as much as digits as its factorization.

12997232527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 49.

The spelling of 12997232527 in words is "twelve billion, nine hundred ninety-seven million, two hundred thirty-two thousand, five hundred twenty-seven".