12360662521 has 2 divisors, whose sum is σ = 12360662522. Its totient is φ = 12360662520.

The previous prime is 12360662459. The next prime is 12360662527. The reversal of 12360662521 is 12526606321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6684697600 + 5675964921 = 81760^2 + 75339^2 .

It is a cyclic number.

It is not a de Polignac number, because 12360662521 - 2²⁵ = 12327108089 is a prime.

It is not a weakly prime, because it can be changed into another prime (12360662527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6180331260 + 6180331261.

It is an arithmetic number, because the mean of its divisors is an integer number (6180331261).

Almost surely, 2^12360662521 is an apocalyptic number.

It is an amenable number.

12360662521 is a deficient number, since it is larger than the sum of its proper divisors (1).

12360662521 is an equidigital number, since it uses as much as digits as its factorization.

12360662521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 12360662521 in words is "twelve billion, three hundred sixty million, six hundred sixty-two thousand, five hundred twenty-one".