1100000111111 has 4 divisors (see below), whose sum is σ = 1200000121224. Its totient is φ = 1000000101000.

The previous prime is 1100000111017. The next prime is 1100000111117. The reversal of 1100000111111 is 1111110000011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1100000111111 - 2²⁶ = 1099933002247 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100000111117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50000005040 + ... + 50000005061.

It is an arithmetic number, because the mean of its divisors is an integer number (300000030306).

Almost surely, 2^{1100000111111} is an apocalyptic number.

1100000111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1100000111111 is a deficient number, since it is larger than the sum of its proper divisors (100000010113).

1100000111111 is a wasteful number, since it uses less digits than its factorization.

1100000111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100000010112.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 1100000111111 its reverse (1111110000011), we get a palindrome (2211110111122).

It can be divided in two parts, 110000011 and 1111, that multiplied together give a palindrome (122210012221).

The spelling of 1100000111111 in words is "one trillion, one hundred billion, one hundred eleven thousand, one hundred eleven".