20320310336 has 14 divisors (see below), whose sum is σ = 40323115950. Its totient is φ = 10160155136.

The previous prime is 20320310333. The next prime is 20320310369. The reversal of 20320310336 is 63301302302.

It can be written as a sum of positive squares in only one way, i.e., 17244942400 + 3075367936 = 131320^2 + 55456^2 .

It is not an unprimeable number, because it can be changed into a prime (20320310333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158752361 + ... + 158752488.

Almost surely, 2^20320310336 is an apocalyptic number.

It is an amenable number.

20320310336 is a deficient number, since it is larger than the sum of its proper divisors (20002805614).

20320310336 is an equidigital number, since it uses as much as digits as its factorization.

20320310336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317504861 (or 317504851 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20320310336 its reverse (63301302302), we get a palindrome (83621612638).

The spelling of 20320310336 in words is "twenty billion, three hundred twenty million, three hundred ten thousand, three hundred thirty-six".