11806715213 has 2 divisors, whose sum is σ = 11806715214. Its totient is φ = 11806715212.

The previous prime is 11806715171. The next prime is 11806715227. The reversal of 11806715213 is 31251760811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11105365924 + 701349289 = 105382^2 + 26483^2 .

It is a cyclic number.

It is not a de Polignac number, because 11806715213 - 2¹⁴ = 11806698829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11806715243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5903357606 + 5903357607.

It is an arithmetic number, because the mean of its divisors is an integer number (5903357607).

Almost surely, 2^11806715213 is an apocalyptic number.

It is an amenable number.

11806715213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11806715213 is an equidigital number, since it uses as much as digits as its factorization.

11806715213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The spelling of 11806715213 in words is "eleven billion, eight hundred six million, seven hundred fifteen thousand, two hundred thirteen".