11721132832 has 36 divisors (see below), whose sum is σ = 24354451926. Its totient is φ = 5552110080.

The previous prime is 11721132823. The next prime is 11721132901. The reversal of 11721132832 is 23823112711.

It can be written as a sum of positive squares in only one way, i.e., 7258358416 + 4462774416 = 85196^2 + 66804^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11721132794 and 11721132803.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 495769 + ... + 518872.

Almost surely, 2^11721132832 is an apocalyptic number.

It is an amenable number.

11721132832 is an abundant number, since it is smaller than the sum of its proper divisors (12633319094).

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

11721132832 is a wasteful number, since it uses less digits than its factorization.

11721132832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014689 (or 1014662 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The spelling of 11721132832 in words is "eleven billion, seven hundred twenty-one million, one hundred thirty-two thousand, eight hundred thirty-two".