1111001100111 has 96 divisors (see below), whose sum is σ = 2006199360000. Its totient is φ = 604731536640.

The previous prime is 1111001100107. The next prime is 1111001100151. The reversal of 1111001100111 is 1110011001111.

It is not a de Polignac number, because 1111001100111 - 2² = 1111001100107 is a prime.

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

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1111001100093 and 1111001100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111001100101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7257640 + ... + 7409138.

It is an arithmetic number, because the mean of its divisors is an integer number (20897910000).

Almost surely, 2^{1111001100111} is an apocalyptic number.

1111001100111 is a deficient number, since it is larger than the sum of its proper divisors (895198259889).

1111001100111 is a wasteful number, since it uses less digits than its factorization.

1111001100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151786 (or 151773 counting only the distinct ones).

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

Adding to 1111001100111 its reverse (1110011001111), we get a palindrome (2221012101222).

The spelling of 1111001100111 in words is "one trillion, one hundred eleven billion, one million, one hundred thousand, one hundred eleven".