13020332032 has 64 divisors (see below), whose sum is σ = 26185426740. Its totient is φ = 6473908224.

The previous prime is 13020332023. The next prime is 13020332047. The reversal of 13020332032 is 23023302031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9891495936 + 3128836096 = 99456^2 + 55936^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6454288 + ... + 6456304.

Almost surely, 2^13020332032 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 13020332032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13092713370).

13020332032 is an abundant number, since it is smaller than the sum of its proper divisors (13165094708).

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

13020332032 is an frugal number, since it uses more digits than its factorization.

13020332032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244 (or 2216 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 13020332032 its reverse (23023302031), we get a palindrome (36043634063).

The spelling of 13020332032 in words is "thirteen billion, twenty million, three hundred thirty-two thousand, thirty-two".