20321333312 has 42 divisors (see below), whose sum is σ = 46908850302. Its totient is φ = 8709141504.

The previous prime is 20321333297. The next prime is 20321333323. The reversal of 20321333312 is 21333312302.

It can be written as a sum of positive squares in only one way, i.e., 14848884736 + 5472448576 = 121856^2 + 73976^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3236873 + ... + 3243144.

Almost surely, 2^20321333312 is an apocalyptic number.

It is an amenable number.

20321333312 is an abundant number, since it is smaller than the sum of its proper divisors (26587516990).

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

20321333312 is an equidigital number, since it uses as much as digits as its factorization.

20321333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480043 (or 6480026 counting only the distinct ones).

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

Adding to 20321333312 its reverse (21333312302), we get a palindrome (41654645614).

The spelling of 20321333312 in words is "twenty billion, three hundred twenty-one million, three hundred thirty-three thousand, three hundred twelve".