1101111000111 has 16 divisors (see below), whose sum is σ = 1683897349120. Its totient is φ = 710394193080.

The previous prime is 1101111000109. The next prime is 1101111000131. The reversal of 1101111000111 is 1110001111011.

It is not a de Polignac number, because 1101111000111 - 2¹ = 1101111000109 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 junction number, because it is equal to n+sod(n) for n = 1101111000093 and 1101111000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101111000131) 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, 657771565 + ... + 657773238.

It is an arithmetic number, because the mean of its divisors is an integer number (105243584320).

Almost surely, 2^{1101111000111} is an apocalyptic number.

1101111000111 is a deficient number, since it is larger than the sum of its proper divisors (582786349009).

1101111000111 is a wasteful number, since it uses less digits than its factorization.

1101111000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315544843 (or 1315544837 counting only the distinct ones).

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

Adding to 1101111000111 its reverse (1110001111011), we get a palindrome (2211112111122).

The spelling of 1101111000111 in words is "one trillion, one hundred one billion, one hundred eleven million, one hundred eleven", and thus it is an aban number.