213104655713 has 2 divisors, whose sum is σ = 213104655714. Its totient is φ = 213104655712.

The previous prime is 213104655697. The next prime is 213104655721. The reversal of 213104655713 is 317556401312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209331870784 + 3772784929 = 457528^2 + 61423^2 .

It is a cyclic number.

It is not a de Polignac number, because 213104655713 - 2⁴ = 213104655697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (213104655613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106552327856 + 106552327857.

It is an arithmetic number, because the mean of its divisors is an integer number (106552327857).

Almost surely, 2^213104655713 is an apocalyptic number.

It is an amenable number.

213104655713 is a deficient number, since it is larger than the sum of its proper divisors (1).

213104655713 is an equidigital number, since it uses as much as digits as its factorization.

213104655713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 213104655713 in words is "two hundred thirteen billion, one hundred four million, six hundred fifty-five thousand, seven hundred thirteen".