1100111001111 has 16 divisors (see below), whose sum is σ = 1630309470720. Its totient is φ = 733175406360.

The previous prime is 1100111001007. The next prime is 1100111001149. The reversal of 1100111001111 is 1111001110011.

It is not a de Polignac number, because 1100111001111 - 2¹¹ = 1100110999063 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 = 1100111001093 and 1100111001102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100111001511) 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, 6355455 + ... + 6526256.

It is an arithmetic number, because the mean of its divisors is an integer number (101894341920).

Almost surely, 2^{1100111001111} is an apocalyptic number.

1100111001111 is a deficient number, since it is larger than the sum of its proper divisors (530198469609).

1100111001111 is a wasteful number, since it uses less digits than its factorization.

1100111001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12884883 (or 12884877 counting only the distinct ones).

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

Adding to 1100111001111 its reverse (1111001110011), we get a palindrome (2211112111122).

It can be divided in two parts, 11001110011 and 11, that multiplied together give a palindrome (121012210121).

The spelling of 1100111001111 in words is "one trillion, one hundred billion, one hundred eleven million, one thousand, one hundred eleven".