20320323132 has 24 divisors (see below), whose sum is σ = 47422757200. Its totient is φ = 6772202496.

The previous prime is 20320323109. The next prime is 20320323157. The reversal of 20320323132 is 23132302302.

It is a junction number, because it is equal to n+sod(n) for n = 20320323099 and 20320323108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85207 + ... + 218862.

Almost surely, 2^20320323132 is an apocalyptic number.

It is an amenable number.

20320323132 is an abundant number, since it is smaller than the sum of its proper divisors (27102434068).

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

20320323132 is a wasteful number, since it uses less digits than its factorization.

20320323132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309645 (or 309643 counting only the distinct ones).

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

Adding to 20320323132 its reverse (23132302302), we get a palindrome (43452625434).

The spelling of 20320323132 in words is "twenty billion, three hundred twenty million, three hundred twenty-three thousand, one hundred thirty-two".