11103312112 has 20 divisors (see below), whose sum is σ = 22644913480. Its totient is φ = 5259463488.

The previous prime is 11103312109. The next prime is 11103312113. The reversal of 11103312112 is 21121330111.

It is a happy number.

11103312112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103312113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18261723 + ... + 18262330.

It is an arithmetic number, because the mean of its divisors is an integer number (1132245674).

Almost surely, 2^11103312112 is an apocalyptic number.

It is an amenable number.

11103312112 is an abundant number, since it is smaller than the sum of its proper divisors (11541601368).

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

11103312112 is a wasteful number, since it uses less digits than its factorization.

11103312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36524080 (or 36524074 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11103312112 its reverse (21121330111), we get a palindrome (32224642223).

The spelling of 11103312112 in words is "eleven billion, one hundred three million, three hundred twelve thousand, one hundred twelve".