11011109111 has 2 divisors, whose sum is σ = 11011109112. Its totient is φ = 11011109110.

The previous prime is 11011109071. The next prime is 11011109173. The reversal of 11011109111 is 11190111011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11011109111 - 2⁶ = 11011109047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11011109111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011109911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505554555 + 5505554556.

It is an arithmetic number, because the mean of its divisors is an integer number (5505554556).

Almost surely, 2^11011109111 is an apocalyptic number.

11011109111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011109111 is an equidigital number, since it uses as much as digits as its factorization.

11011109111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 17.

The spelling of 11011109111 in words is "eleven billion, eleven million, one hundred nine thousand, one hundred eleven".