11520323520 has 112 divisors (see below), whose sum is σ = 37040271360. Its totient is φ = 3033179136.

The previous prime is 11520323519. The next prime is 11520323533. The reversal of 11520323520 is 2532302511.

It is a happy number.

11520323520 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 (24).

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 15 ways as a sum of consecutive naturals, for example, 112 + ... + 151791.

Almost surely, 2^11520323520 is an apocalyptic number.

11520323520 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 11520323520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18520135680).

11520323520 is an abundant number, since it is smaller than the sum of its proper divisors (25519947840).

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

11520323520 is a wasteful number, since it uses less digits than its factorization.

11520323520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152002 (or 151992 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 11520323520 in words is "eleven billion, five hundred twenty million, three hundred twenty-three thousand, five hundred twenty".