111100010010111 has 6 divisors (see below), whose sum is σ = 160477792236840. Its totient is φ = 74066673340068.

The previous prime is 111100010010107. The next prime is 111100010010179. The reversal of 111100010010111 is 111010010001111.

It is not a de Polignac number, because 111100010010111 - 2² = 111100010010107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 12344445556679 = 111100010010111 / (1 + 1 + 1 + 1 + 0 + 0 + 0 + 1 + 0 + 0 + 1 + 0 + 1 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 111100010010093 and 111100010010102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100010010511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6172222778331 + ... + 6172222778348.

It is an arithmetic number, because the mean of its divisors is an integer number (26746298706140).

Almost surely, 2^{111100010010111} is an apocalyptic number.

111100010010111 is a deficient number, since it is larger than the sum of its proper divisors (49377782226729).

111100010010111 is a wasteful number, since it uses less digits than its factorization.

111100010010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12344445556685 (or 12344445556682 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 111100010010111 its reverse (111010010001111), we get a palindrome (222110020011222).

The spelling of 111100010010111 in words is "one hundred eleven trillion, one hundred billion, ten million, ten thousand, one hundred eleven".