11513028288 has 112 divisors (see below), whose sum is σ = 31645555200. Its totient is φ = 3691161600.

The previous prime is 11513028259. The next prime is 11513028323. The reversal of 11513028288 is 88282031511.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548613 + ... + 569211.

It is an arithmetic number, because the mean of its divisors is an integer number (282549600).

Almost surely, 2^11513028288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11513028288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15822777600).

11513028288 is an abundant number, since it is smaller than the sum of its proper divisors (20132526912).

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

11513028288 is a wasteful number, since it uses less digits than its factorization.

11513028288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20726 (or 20716 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

Adding to 11513028288 its reverse (88282031511), we get a palindrome (99795059799).

The spelling of 11513028288 in words is "eleven billion, five hundred thirteen million, twenty-eight thousand, two hundred eighty-eight".