20322330132 has 96 divisors (see below), whose sum is σ = 52350157440. Its totient is φ = 6097766400.

The previous prime is 20322330109. The next prime is 20322330163. The reversal of 20322330132 is 23103322302.

It is a junction number, because it is equal to n+sod(n) for n = 20322330099 and 20322330108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1003507 + ... + 1023557.

It is an arithmetic number, because the mean of its divisors is an integer number (545314140).

Almost surely, 2^20322330132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20322330132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26175078720).

20322330132 is an abundant number, since it is smaller than the sum of its proper divisors (32027827308).

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

20322330132 is a wasteful number, since it uses less digits than its factorization.

20322330132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20233 (or 20231 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20322330132 its reverse (23103322302), we get a palindrome (43425652434).

The spelling of 20322330132 in words is "twenty billion, three hundred twenty-two million, three hundred thirty thousand, one hundred thirty-two".