20320203324 has 96 divisors (see below), whose sum is σ = 49127823360. Its totient is φ = 6533065728.

The previous prime is 20320203301. The next prime is 20320203359. The reversal of 20320203324 is 42330202302.

It is a self number, because there is not a number n which added to its sum of digits gives 20320203324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15763672 + ... + 15764960.

It is an arithmetic number, because the mean of its divisors is an integer number (511748160).

Almost surely, 2^20320203324 is an apocalyptic number.

It is an amenable number.

20320203324 is an abundant number, since it is smaller than the sum of its proper divisors (28807620036).

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

20320203324 is a wasteful number, since it uses less digits than its factorization.

20320203324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699 (or 1697 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 20320203324 its reverse (42330202302), we get a palindrome (62650405626).

The spelling of 20320203324 in words is "twenty billion, three hundred twenty million, two hundred three thousand, three hundred twenty-four".