20043321232 has 80 divisors (see below), whose sum is σ = 46403280000. Its totient is φ = 8278968320.

The previous prime is 20043321209. The next prime is 20043321241. The reversal of 20043321232 is 23212334002.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28732 + ... + 202267.

It is an arithmetic number, because the mean of its divisors is an integer number (580041000).

Almost surely, 2^20043321232 is an apocalyptic number.

20043321232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20043321232 is an abundant number, since it is smaller than the sum of its proper divisors (26359958768).

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

20043321232 is a wasteful number, since it uses less digits than its factorization.

20043321232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231064 (or 231058 counting only the distinct ones).

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

Adding to 20043321232 its reverse (23212334002), we get a palindrome (43255655234).

The spelling of 20043321232 in words is "twenty billion, forty-three million, three hundred twenty-one thousand, two hundred thirty-two".