11103013120 has 72 divisors (see below), whose sum is σ = 26619747840. Its totient is φ = 4437104640.

The previous prime is 11103013091. The next prime is 11103013121. The reversal of 11103013120 is 2131030111.

It is a self number, because there is not a number n which added to its sum of digits gives 11103013120.

It is not an unprimeable number, because it can be changed into a prime (11103013121) 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, 1649121 + ... + 1655839.

It is an arithmetic number, because the mean of its divisors is an integer number (369718720).

Almost surely, 2^11103013120 is an apocalyptic number.

11103013120 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 11103013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13309873920).

11103013120 is an abundant number, since it is smaller than the sum of its proper divisors (15516734720).

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

11103013120 is an equidigital number, since it uses as much as digits as its factorization.

11103013120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8031 (or 8017 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11103013120 its reverse (2131030111), we get a palindrome (13234043231).

The spelling of 11103013120 in words is "eleven billion, one hundred three million, thirteen thousand, one hundred twenty".