11520344000 has 448 divisors, whose sum is σ = 33230905344. Its totient is φ = 3916800000.

The previous prime is 11520343997. The next prime is 11520344023. The reversal of 11520344000 is 44302511.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 111847949 + ... + 111848051.

It is an arithmetic number, because the mean of its divisors is an integer number (74176128).

Almost surely, 2^11520344000 is an apocalyptic number.

11520344000 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 11520344000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16615452672).

11520344000 is an abundant number, since it is smaller than the sum of its proper divisors (21710561344).

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

11520344000 is a wasteful number, since it uses less digits than its factorization.

11520344000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 11520344000 its reverse (44302511), we get a palindrome (11564646511).

The spelling of 11520344000 in words is "eleven billion, five hundred twenty million, three hundred forty-four thousand".