111110111101111 has 8 divisors (see below), whose sum is σ = 119164766623920. Its totient is φ = 103276131072192.

The previous prime is 111110111101109. The next prime is 111110111101141. The reversal of 111110111101111 is 111101111011111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 111110111101111 - 2¹ = 111110111101109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111110111101091 and 111110111101100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110111101141) 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, 55168872430 + ... + 55168874443.

It is an arithmetic number, because the mean of its divisors is an integer number (14895595827990).

Almost surely, 2^{111110111101111} is an apocalyptic number.

111110111101111 is a deficient number, since it is larger than the sum of its proper divisors (8054655522809).

111110111101111 is a wasteful number, since it uses less digits than its factorization.

111110111101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110337746945.

The product of its (nonzero) digits is 1, while the sum is 13.

Adding to 111110111101111 its reverse (111101111011111), we get a palindrome (222211222112222).

The spelling of 111110111101111 in words is "one hundred eleven trillion, one hundred ten billion, one hundred eleven million, one hundred one thousand, one hundred eleven".