11011100011100 has 144 divisors (see below), whose sum is σ = 27374485587456. Its totient is φ = 3765988512000.

The previous prime is 11011100011063. The next prime is 11011100011129. The reversal of 11011100011100 is 111000111011.

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, 519601505 + ... + 519622695.

Almost surely, 2^{11011100011100} is an apocalyptic number.

11011100011100 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 11011100011100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13687242793728).

11011100011100 is an abundant number, since it is smaller than the sum of its proper divisors (16363385576356).

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

11011100011100 is a wasteful number, since it uses less digits than its factorization.

11011100011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22996 (or 22989 counting only the distinct ones).

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

Adding to 11011100011100 its reverse (111000111011), we get a palindrome (11122100122111).

It can be divided in two parts, 1 and 1011100011100, that added together give a palindrome (1011100011101).

The spelling of 11011100011100 in words is "eleven trillion, eleven billion, one hundred million, eleven thousand, one hundred".