11103100112 has 80 divisors (see below), whose sum is σ = 24558709392. Its totient is φ = 4817387520.

The previous prime is 11103100111. The next prime is 11103100121. The reversal of 11103100112 is 21100130111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 262958656 + 10840141456 = 16216^2 + 104116^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11103100093 and 11103100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103100111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4669868 + ... + 4672244.

Almost surely, 2^11103100112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11103100112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12279354696).

11103100112 is an abundant number, since it is smaller than the sum of its proper divisors (13455609280).

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

11103100112 is a wasteful number, since it uses less digits than its factorization.

11103100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736 (or 3730 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11103100112 its reverse (21100130111), we get a palindrome (32203230223).

The spelling of 11103100112 in words is "eleven billion, one hundred three million, one hundred thousand, one hundred twelve".