110111111011111 has 12 divisors (see below), whose sum is σ = 128090263906800. Its totient is φ = 94379604869760.

The previous prime is 110111111011063. The next prime is 110111111011189. The reversal of 110111111011111 is 111110111111011.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-110111111011111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110111111011091 and 110111111011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110111111011411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12565930 + ... + 19445431.

It is an arithmetic number, because the mean of its divisors is an integer number (10674188658900).

Almost surely, 2^{110111111011111} is an apocalyptic number.

110111111011111 is a deficient number, since it is larger than the sum of its proper divisors (17979152895689).

110111111011111 is an equidigital number, since it uses as much as digits as its factorization.

110111111011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32081574 (or 32081567 counting only the distinct ones).

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

Adding to 110111111011111 its reverse (111110111111011), we get a palindrome (221221222122122).

It can be divided in two parts, 110111111011 and 111, that multiplied together give a palindrome (12222333322221).

The spelling of 110111111011111 in words is "one hundred ten trillion, one hundred eleven billion, one hundred eleven million, eleven thousand, one hundred eleven".