11808736213 has 2 divisors, whose sum is σ = 11808736214. Its totient is φ = 11808736212.

The previous prime is 11808736211. The next prime is 11808736241. The reversal of 11808736213 is 31263780811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7588674769 + 4220061444 = 87113^2 + 64962^2 .

It is a cyclic number.

It is not a de Polignac number, because 11808736213 - 2¹ = 11808736211 is a prime.

Together with 11808736211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11808736211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5904368106 + 5904368107.

It is an arithmetic number, because the mean of its divisors is an integer number (5904368107).

Almost surely, 2^11808736213 is an apocalyptic number.

It is an amenable number.

11808736213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11808736213 is an equidigital number, since it uses as much as digits as its factorization.

11808736213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 11808736213 in words is "eleven billion, eight hundred eight million, seven hundred thirty-six thousand, two hundred thirteen".