11511522132 has 96 divisors (see below), whose sum is σ = 29832722304. Its totient is φ = 3425587200.

The previous prime is 11511522109. The next prime is 11511522173. The reversal of 11511522132 is 23122511511.

11511522132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 2319798 + ... + 2324754.

It is an arithmetic number, because the mean of its divisors is an integer number (310757524).

Almost surely, 2^11511522132 is an apocalyptic number.

11511522132 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 11511522132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14916361152).

11511522132 is an abundant number, since it is smaller than the sum of its proper divisors (18321200172).

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

11511522132 is a wasteful number, since it uses less digits than its factorization.

11511522132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289 (or 5287 counting only the distinct ones).

The product of its digits is 600, while the sum is 24.

The spelling of 11511522132 in words is "eleven billion, five hundred eleven million, five hundred twenty-two thousand, one hundred thirty-two".