12685416720311 has 2 divisors, whose sum is σ = 12685416720312. Its totient is φ = 12685416720310.

The previous prime is 12685416720281. The next prime is 12685416720323. The reversal of 12685416720311 is 11302761458621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12685416720311 - 2³⁸ = 12410538813367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12685416770311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6342708360155 + 6342708360156.

It is an arithmetic number, because the mean of its divisors is an integer number (6342708360156).

Almost surely, 2^{12685416720311} is an apocalyptic number.

12685416720311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12685416720311 is an equidigital number, since it uses as much as digits as its factorization.

12685416720311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 12685416720311 in words is "twelve trillion, six hundred eighty-five billion, four hundred sixteen million, seven hundred twenty thousand, three hundred eleven".