1111000111101 has 16 divisors (see below), whose sum is σ = 1645942808320. Its totient is φ = 740659217760.

The previous prime is 1111000111093. The next prime is 1111000111187. The reversal of 1111000111101 is 1011110001111.

It is not a de Polignac number, because 1111000111101 - 2³ = 1111000111093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111000116101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4156956 + ... + 4416138.

It is an arithmetic number, because the mean of its divisors is an integer number (102871425520).

Almost surely, 2^{1111000111101} is an apocalyptic number.

It is an amenable number.

1111000111101 is a deficient number, since it is larger than the sum of its proper divisors (534942697219).

1111000111101 is a wasteful number, since it uses less digits than its factorization.

1111000111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417953 (or 417947 counting only the distinct ones).

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

Adding to 1111000111101 its reverse (1011110001111), we get a palindrome (2122110112212).

The spelling of 1111000111101 in words is "one trillion, one hundred eleven billion, one hundred eleven thousand, one hundred one".