20320203304 has 48 divisors (see below), whose sum is σ = 38854158300. Its totient is φ = 9962201088.

The previous prime is 20320203301. The next prime is 20320203359. The reversal of 20320203304 is 40330202302.

It can be written as a sum of positive squares in 6 ways, for example, as 1383691204 + 18936512100 = 37198^2 + 137610^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320203301) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8504542 + ... + 8506930.

Almost surely, 2^20320203304 is an apocalyptic number.

It is an amenable number.

20320203304 is a deficient number, since it is larger than the sum of its proper divisors (18533954996).

20320203304 is a wasteful number, since it uses less digits than its factorization.

20320203304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702 (or 2601 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 20320203304 its reverse (40330202302), we get a palindrome (60650405606).

The spelling of 20320203304 in words is "twenty billion, three hundred twenty million, two hundred three thousand, three hundred four".