11103120 has 120 divisors (see below), whose sum is σ = 42634176. Its totient is φ = 2536704.

The previous prime is 11103119. The next prime is 11103133. The reversal of 11103120 is 2130111.

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 (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3939 + ... + 6141.

Almost surely, 2^11103120 is an apocalyptic number.

11103120 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 11103120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21317088).

11103120 is an abundant number, since it is smaller than the sum of its proper divisors (31531056).

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

11103120 is a wasteful number, since it uses less digits than its factorization.

11103120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229 (or 2220 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 11103120 is about 3332.1344510689. The cubic root of 11103120 is about 223.0908087335.

Adding to 11103120 its reverse (2130111), we get a palindrome (13233231).

The spelling of 11103120 in words is "eleven million, one hundred three thousand, one hundred twenty".