20320130321 has 8 divisors (see below), whose sum is σ = 21934774080. Its totient is φ = 18766416592.

The previous prime is 20320130293. The next prime is 20320130359. The reversal of 20320130321 is 12303102302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20320130321 - 2¹⁴ = 20320113937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20320130321.

It is not an unprimeable number, because it can be changed into a prime (20320130521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15231815 + ... + 15233148.

It is an arithmetic number, because the mean of its divisors is an integer number (2741846760).

Almost surely, 2^20320130321 is an apocalyptic number.

It is an amenable number.

20320130321 is a deficient number, since it is larger than the sum of its proper divisors (1614643759).

20320130321 is a wasteful number, since it uses less digits than its factorization.

20320130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30465015.

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

Adding to 20320130321 its reverse (12303102302), we get a palindrome (32623232623).

The spelling of 20320130321 in words is "twenty billion, three hundred twenty million, one hundred thirty thousand, three hundred twenty-one".