20322012132 has 48 divisors (see below), whose sum is σ = 52738089600. Its totient is φ = 6767396640.

The previous prime is 20322012121. The next prime is 20322012157. The reversal of 20322012132 is 23121022302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20094 + ... + 202602.

It is an arithmetic number, because the mean of its divisors is an integer number (1098710200).

Almost surely, 2^20322012132 is an apocalyptic number.

It is an amenable number.

20322012132 is an abundant number, since it is smaller than the sum of its proper divisors (32416077468).

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

20322012132 is a wasteful number, since it uses less digits than its factorization.

20322012132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183553 (or 183545 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20322012132 its reverse (23121022302), we get a palindrome (43443034434).

The spelling of 20322012132 in words is "twenty billion, three hundred twenty-two million, twelve thousand, one hundred thirty-two".