11520333044440 has 128 divisors (see below), whose sum is σ = 28731649190400. Its totient is φ = 4122024698880.

The previous prime is 11520333044399. The next prime is 11520333044501. The reversal of 11520333044440 is 4444033302511.

It is a junction number, because it is equal to n+sod(n) for n = 11520333044396 and 11520333044405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25928476 + ... + 26369044.

It is an arithmetic number, because the mean of its divisors is an integer number (224466009300).

Almost surely, 2^{11520333044440} is an apocalyptic number.

11520333044440 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 11520333044440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14365824595200).

11520333044440 is an abundant number, since it is smaller than the sum of its proper divisors (17211316145960).

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

11520333044440 is a wasteful number, since it uses less digits than its factorization.

11520333044440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441545 (or 441541 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 11520333044440 its reverse (4444033302511), we get a palindrome (15964366346951).

The spelling of 11520333044440 in words is "eleven trillion, five hundred twenty billion, three hundred thirty-three million, forty-four thousand, four hundred forty".