11103320400 has 120 divisors (see below), whose sum is σ = 36098757984. Its totient is φ = 2916672000.

The previous prime is 11103320399. The next prime is 11103320411. The reversal of 11103320400 is 402330111.

11103320400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11103320400.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 11350 + ... + 149450.

Almost surely, 2^11103320400 is an apocalyptic number.

11103320400 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 11103320400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18049378992).

11103320400 is an abundant number, since it is smaller than the sum of its proper divisors (24995437584).

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

11103320400 is a wasteful number, since it uses less digits than its factorization.

11103320400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138189 (or 138178 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11103320400 its reverse (402330111), we get a palindrome (11505650511).

The spelling of 11103320400 in words is "eleven billion, one hundred three million, three hundred twenty thousand, four hundred".