20321232322 has 4 divisors (see below), whose sum is σ = 30481848486. Its totient is φ = 10160616160.

The previous prime is 20321232311. The next prime is 20321232329. The reversal of 20321232322 is 22323212302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22323212302 = 2 ⋅11161606151.

It can be written as a sum of positive squares in only one way, i.e., 12416422041 + 7904810281 = 111429^2 + 88909^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20321232293 and 20321232302.

It is not an unprimeable number, because it can be changed into a prime (20321232329) by changing a digit.

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 as a sum of consecutive naturals, namely, 5080308079 + ... + 5080308082.

Almost surely, 2^20321232322 is an apocalyptic number.

20321232322 is a deficient number, since it is larger than the sum of its proper divisors (10160616164).

20321232322 is a wasteful number, since it uses less digits than its factorization.

20321232322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10160616163.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20321232322 its reverse (22323212302), we get a palindrome (42644444624).

The spelling of 20321232322 in words is "twenty billion, three hundred twenty-one million, two hundred thirty-two thousand, three hundred twenty-two".