11100911111 has 8 divisors (see below), whose sum is σ = 11345899824. Its totient is φ = 10858571200.

The previous prime is 11100911057. The next prime is 11100911113. The reversal of 11100911111 is 11111900111.

11100911111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11100911111 - 2⁶ = 11100911047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11100911111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100911113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653726 + ... + 670491.

It is an arithmetic number, because the mean of its divisors is an integer number (1418237478).

Almost surely, 2^11100911111 is an apocalyptic number.

11100911111 is a deficient number, since it is larger than the sum of its proper divisors (244988713).

11100911111 is a wasteful number, since it uses less digits than its factorization.

11100911111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324401.

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

The spelling of 11100911111 in words is "eleven billion, one hundred million, nine hundred eleven thousand, one hundred eleven".