20320023232 has 14 divisors (see below), whose sum is σ = 40322546228. Its totient is φ = 10160011584.

The previous prime is 20320023221. The next prime is 20320023239. The reversal of 20320023232 is 23232002302.

It is not an unprimeable number, because it can be changed into a prime (20320023239) 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 as a sum of consecutive naturals, namely, 158750118 + ... + 158750245.

Almost surely, 2^20320023232 is an apocalyptic number.

It is an amenable number.

20320023232 is a deficient number, since it is larger than the sum of its proper divisors (20002522996).

20320023232 is an equidigital number, since it uses as much as digits as its factorization.

20320023232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317500375 (or 317500365 counting only the distinct ones).

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

Adding to 20320023232 its reverse (23232002302), we get a palindrome (43552025534).

The spelling of 20320023232 in words is "twenty billion, three hundred twenty million, twenty-three thousand, two hundred thirty-two".