11101111109999 has 2 divisors, whose sum is σ = 11101111110000. Its totient is φ = 11101111109998.

The previous prime is 11101111109947. The next prime is 11101111110017. The reversal of 11101111109999 is 99990111110111.

11101111109999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (99990111110111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101111109999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101111109939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550555554999 + 5550555555000.

It is an arithmetic number, because the mean of its divisors is an integer number (5550555555000).

Almost surely, 2^{11101111109999} is an apocalyptic number.

11101111109999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101111109999 is an equidigital number, since it uses as much as digits as its factorization.

11101111109999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6561, while the sum is 44.

The spelling of 11101111109999 in words is "eleven trillion, one hundred one billion, one hundred eleven million, one hundred nine thousand, nine hundred ninety-nine".