11138688734911 has 2 divisors, whose sum is σ = 11138688734912. Its totient is φ = 11138688734910.

The previous prime is 11138688734891. The next prime is 11138688734983. The reversal of 11138688734911 is 11943788683111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11138688734911 - 2²¹ = 11138686637759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11138688734911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11138688734011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5569344367455 + 5569344367456.

It is an arithmetic number, because the mean of its divisors is an integer number (5569344367456).

Almost surely, 2^{11138688734911} is an apocalyptic number.

11138688734911 is a deficient number, since it is larger than the sum of its proper divisors (1).

11138688734911 is an equidigital number, since it uses as much as digits as its factorization.

11138688734911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6967296, while the sum is 61.

The spelling of 11138688734911 in words is "eleven trillion, one hundred thirty-eight billion, six hundred eighty-eight million, seven hundred thirty-four thousand, nine hundred eleven".