12685110163213 has 2 divisors, whose sum is σ = 12685110163214. Its totient is φ = 12685110163212.

The previous prime is 12685110163199. The next prime is 12685110163259. The reversal of 12685110163213 is 31236101158621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10031136836809 + 2653973326404 = 3167197^2 + 1629102^2 .

It is a cyclic number.

It is not a de Polignac number, because 12685110163213 - 2²⁹ = 12684573292301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12685110463213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6342555081606 + 6342555081607.

It is an arithmetic number, because the mean of its divisors is an integer number (6342555081607).

Almost surely, 2^{12685110163213} is an apocalyptic number.

It is an amenable number.

12685110163213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12685110163213 is an equidigital number, since it uses as much as digits as its factorization.

12685110163213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 12685110163213 in words is "twelve trillion, six hundred eighty-five billion, one hundred ten million, one hundred sixty-three thousand, two hundred thirteen".