20322021432 has 16 divisors (see below), whose sum is σ = 50805053640. Its totient is φ = 6774007136.

The previous prime is 20322021403. The next prime is 20322021481. The reversal of 20322021432 is 23412022302.

It is a junction number, because it is equal to n+sod(n) for n = 20322021399 and 20322021408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423375423 + ... + 423375470.

Almost surely, 2^20322021432 is an apocalyptic number.

It is an amenable number.

20322021432 is an abundant number, since it is smaller than the sum of its proper divisors (30483032208).

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

20322021432 is a wasteful number, since it uses less digits than its factorization.

20322021432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846750902 (or 846750898 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20322021432 its reverse (23412022302), we get a palindrome (43734043734).

The spelling of 20322021432 in words is "twenty billion, three hundred twenty-two million, twenty-one thousand, four hundred thirty-two".