11520311543052 has 96 divisors (see below), whose sum is σ = 29231952422400. Its totient is φ = 3510005460480.

The previous prime is 11520311543023. The next prime is 11520311543057. The reversal of 11520311543052 is 25034511302511.

It is not an unprimeable number, because it can be changed into a prime (11520311543057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270097824 + ... + 270140472.

It is an arithmetic number, because the mean of its divisors is an integer number (304499504400).

Almost surely, 2^{11520311543052} is an apocalyptic number.

11520311543052 is a gapful number since it is divisible by the number (12) 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 11520311543052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14615976211200).

11520311543052 is an abundant number, since it is smaller than the sum of its proper divisors (17711640879348).

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

11520311543052 is a wasteful number, since it uses less digits than its factorization.

11520311543052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59583 (or 59581 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 11520311543052 its reverse (25034511302511), we get a palindrome (36554822845563).

The spelling of 11520311543052 in words is "eleven trillion, five hundred twenty billion, three hundred eleven million, five hundred forty-three thousand, fifty-two".