20303324320 has 48 divisors (see below), whose sum is σ = 48210163848. Its totient is φ = 8080092160.

The previous prime is 20303324303. The next prime is 20303324333. The reversal of 20303324320 is 2342330302.

It can be written as a sum of positive squares in 4 ways, for example, as 20103836944 + 199487376 = 141788^2 + 14124^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20303324291 and 20303324300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290551 + ... + 353590.

Almost surely, 2^20303324320 is an apocalyptic number.

20303324320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20303324320 is an abundant number, since it is smaller than the sum of its proper divisors (27906839528).

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

20303324320 is a wasteful number, since it uses less digits than its factorization.

20303324320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644353 (or 644345 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 22.

Adding to 20303324320 its reverse (2342330302), we get a palindrome (22645654622).

The spelling of 20303324320 in words is "twenty billion, three hundred three million, three hundred twenty-four thousand, three hundred twenty".