11001100111100 has 144 divisors (see below), whose sum is σ = 26198875664640. Its totient is φ = 3976466956800.

The previous prime is 11001100111087. The next prime is 11001100111153. The reversal of 11001100111100 is 111100110011.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123559199 + ... + 123648201.

It is an arithmetic number, because the mean of its divisors is an integer number (181936636560).

Almost surely, 2^{11001100111100} is an apocalyptic number.

11001100111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11001100111100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13099437832320).

11001100111100 is an abundant number, since it is smaller than the sum of its proper divisors (15197775553540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11001100111100 is a wasteful number, since it uses less digits than its factorization.

11001100111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89700 (or 89693 counting only the distinct ones).

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

Adding to 11001100111100 its reverse (111100110011), we get a palindrome (11112200221111).

The spelling of 11001100111100 in words is "eleven trillion, one billion, one hundred million, one hundred eleven thousand, one hundred".