32130002321 has 4 divisors (see below), whose sum is σ = 32131410612. Its totient is φ = 32128594032.

The previous prime is 32130002299. The next prime is 32130002339. The reversal of 32130002321 is 12320003123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5865262225 + 26264740096 = 76585^2 + 162064^2 .

It is a cyclic number.

It is not a de Polignac number, because 32130002321 - 2³⁰ = 31056260497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32130002321.

It is not an unprimeable number, because it can be changed into a prime (32130002371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669350 + ... + 715743.

It is an arithmetic number, because the mean of its divisors is an integer number (8032852653).

Almost surely, 2^32130002321 is an apocalyptic number.

It is an amenable number.

32130002321 is a deficient number, since it is larger than the sum of its proper divisors (1408291).

32130002321 is a wasteful number, since it uses less digits than its factorization.

32130002321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408290.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 32130002321 its reverse (12320003123), we get a palindrome (44450005444).

The spelling of 32130002321 in words is "thirty-two billion, one hundred thirty million, two thousand, three hundred twenty-one".