11001100111 has 4 divisors (see below), whose sum is σ = 11580105400. Its totient is φ = 10422094824.

The previous prime is 11001100093. The next prime is 11001100139. The reversal of 11001100111 is 11100110011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11100110011 = 2357 ⋅4709423.

It is a cyclic number.

It is not a de Polignac number, because 11001100111 - 2¹³ = 11001091919 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11001100094 and 11001100103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001100811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289502616 + ... + 289502653.

It is an arithmetic number, because the mean of its divisors is an integer number (2895026350).

Almost surely, 2^11001100111 is an apocalyptic number.

11001100111 is a deficient number, since it is larger than the sum of its proper divisors (579005289).

11001100111 is an equidigital number, since it uses as much as digits as its factorization.

11001100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579005288.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 11001100111 its reverse (11100110011), we get a palindrome (22101210122).

The spelling of 11001100111 in words is "eleven billion, one million, one hundred thousand, one hundred eleven".