11011100112 has 60 divisors (see below), whose sum is σ = 31133515140. Its totient is φ = 3632523264.

The previous prime is 11011100099. The next prime is 11011100117. The reversal of 11011100112 is 21100111011.

It can be written as a sum of positive squares in 2 ways, for example, as 2388863376 + 8622236736 = 48876^2 + 92856^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11011100094 and 11011100103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011100117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 380187 + ... + 408122.

It is an arithmetic number, because the mean of its divisors is an integer number (518891919).

Almost surely, 2^11011100112 is an apocalyptic number.

11011100112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11011100112 is an abundant number, since it is smaller than the sum of its proper divisors (20122415028).

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

11011100112 is a wasteful number, since it uses less digits than its factorization.

11011100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788420 (or 788411 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11011100112 its reverse (21100111011), we get a palindrome (32111211123).

The spelling of 11011100112 in words is "eleven billion, eleven million, one hundred thousand, one hundred twelve".