20322303132 has 144 divisors (see below), whose sum is σ = 52244081120. Its totient is φ = 6142169088.

The previous prime is 20322303073. The next prime is 20322303167. The reversal of 20322303132 is 23130322302.

It is a junction number, because it is equal to n+sod(n) for n = 20322303099 and 20322303108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13985718 + ... + 13987170.

Almost surely, 2^20322303132 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 20322303132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26122040560).

20322303132 is an abundant number, since it is smaller than the sum of its proper divisors (31921777988).

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

20322303132 is a wasteful number, since it uses less digits than its factorization.

20322303132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1621 counting only the distinct ones).

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

Adding to 20322303132 its reverse (23130322302), we get a palindrome (43452625434).

The spelling of 20322303132 in words is "twenty billion, three hundred twenty-two million, three hundred three thousand, one hundred thirty-two".