111000111011111 has 8 divisors (see below), whose sum is σ = 126857375000064. Its totient is φ = 95142873340440.

The previous prime is 111000111011087. The next prime is 111000111011147. The reversal of 111000111011111 is 111110111000111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111000111011111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111000111011092 and 111000111011101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000111013111) 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, 3484406 + ... + 15301676.

It is an arithmetic number, because the mean of its divisors is an integer number (15857171875008).

Almost surely, 2^{111000111011111} is an apocalyptic number.

111000111011111 is a deficient number, since it is larger than the sum of its proper divisors (15857263988953).

111000111011111 is a wasteful number, since it uses less digits than its factorization.

111000111011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13159141.

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

Adding to 111000111011111 its reverse (111110111000111), we get a palindrome (222110222011222).

The spelling of 111000111011111 in words is "one hundred eleven trillion, one hundred eleven million, eleven thousand, one hundred eleven".