12323647581691 has 2 divisors, whose sum is σ = 12323647581692. Its totient is φ = 12323647581690.

The previous prime is 12323647581659. The next prime is 12323647581701. The reversal of 12323647581691 is 19618574632321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12323647581691 - 2⁵ = 12323647581659 is a prime.

It is not a weakly prime, because it can be changed into another prime (12323647581611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161823790845 + 6161823790846.

It is an arithmetic number, because the mean of its divisors is an integer number (6161823790846).

Almost surely, 2^{12323647581691} is an apocalyptic number.

12323647581691 is a deficient number, since it is larger than the sum of its proper divisors (1).

12323647581691 is an equidigital number, since it uses as much as digits as its factorization.

12323647581691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 58.

The spelling of 12323647581691 in words is "twelve trillion, three hundred twenty-three billion, six hundred forty-seven million, five hundred eighty-one thousand, six hundred ninety-one".