11538122711 has 2 divisors, whose sum is σ = 11538122712. Its totient is φ = 11538122710.

The previous prime is 11538122699. The next prime is 11538122749. The reversal of 11538122711 is 11722183511.

It is a weak prime.

It is an emirp because it is prime and its reverse (11722183511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11538122711 - 2¹⁰ = 11538121687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11538122311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5769061355 + 5769061356.

It is an arithmetic number, because the mean of its divisors is an integer number (5769061356).

Almost surely, 2^11538122711 is an apocalyptic number.

11538122711 is a deficient number, since it is larger than the sum of its proper divisors (1).

11538122711 is an equidigital number, since it uses as much as digits as its factorization.

11538122711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 32.

The spelling of 11538122711 in words is "eleven billion, five hundred thirty-eight million, one hundred twenty-two thousand, seven hundred eleven".