11103520 has 48 divisors (see below), whose sum is σ = 27147960. Its totient is φ = 4286464.

The previous prime is 11103509. The next prime is 11103527. The reversal of 11103520 is 2530111.

It can be written as a sum of positive squares in 4 ways, for example, as 5702544 + 5400976 = 2388^2 + 2324^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11103520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3444 + ... + 5836.

Almost surely, 2^11103520 is an apocalyptic number.

11103520 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 11103520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13573980).

11103520 is an abundant number, since it is smaller than the sum of its proper divisors (16044440).

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

11103520 is a wasteful number, since it uses less digits than its factorization.

11103520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437 (or 2429 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 11103520 is about 3332.1944721159. The cubic root of 11103520 is about 223.0934877178.

Adding to 11103520 its reverse (2530111), we get a palindrome (13633631).

The spelling of 11103520 in words is "eleven million, one hundred three thousand, five hundred twenty".