11100506111 has 2 divisors, whose sum is σ = 11100506112. Its totient is φ = 11100506110.

The previous prime is 11100506093. The next prime is 11100506113. The reversal of 11100506111 is 11160500111.

It is a strong prime.

It is an emirp because it is prime and its reverse (11160500111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11100506111 is a prime.

Together with 11100506113, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11100506111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11100506113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550253055 + 5550253056.

It is an arithmetic number, because the mean of its divisors is an integer number (5550253056).

Almost surely, 2^11100506111 is an apocalyptic number.

11100506111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100506111 is an equidigital number, since it uses as much as digits as its factorization.

11100506111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 17.

The spelling of 11100506111 in words is "eleven billion, one hundred million, five hundred six thousand, one hundred eleven".