11100111110111 has 4 divisors (see below), whose sum is σ = 11100119016672. Its totient is φ = 11100103203552.

The previous prime is 11100111110107. The next prime is 11100111110131. The reversal of 11100111110111 is 11101111100111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11100111110111 - 2² = 11100111110107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11100111110092 and 11100111110101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100111110131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1215335 + ... + 4865928.

It is an arithmetic number, because the mean of its divisors is an integer number (2775029754168).

Almost surely, 2^{11100111110111} is an apocalyptic number.

11100111110111 is a deficient number, since it is larger than the sum of its proper divisors (7906561).

11100111110111 is an equidigital number, since it uses as much as digits as its factorization.

11100111110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7906560.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 11100111110111 its reverse (11101111100111), we get a palindrome (22201222210222).

The spelling of 11100111110111 in words is "eleven trillion, one hundred billion, one hundred eleven million, one hundred ten thousand, one hundred eleven".