11110111001111 has 8 divisors (see below), whose sum is σ = 11727249409200. Its totient is φ = 10525368310344.

The previous prime is 11110111001047. The next prime is 11110111001173. The reversal of 11110111001111 is 11110011101111.

It is not a de Polignac number, because 11110111001111 - 2⁶ = 11110111001047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11110111001092 and 11110111001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110111001411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809886056 + ... + 809899773.

It is an arithmetic number, because the mean of its divisors is an integer number (1465906176150).

Almost surely, 2^{11110111001111} is an apocalyptic number.

11110111001111 is a deficient number, since it is larger than the sum of its proper divisors (617138408089).

11110111001111 is an frugal number, since it uses more digits than its factorization.

11110111001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619785886 (or 1619785848 counting only the distinct ones).

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

Adding to 11110111001111 its reverse (11110011101111), we get a palindrome (22220122102222).

The spelling of 11110111001111 in words is "eleven trillion, one hundred ten billion, one hundred eleven million, one thousand, one hundred eleven".