20132000320 has 56 divisors (see below), whose sum is σ = 48093709248. Its totient is φ = 8026867200.

The previous prime is 20132000281. The next prime is 20132000341. The reversal of 20132000320 is 2300023102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20132000320.

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, 1626 + ... + 200665.

Almost surely, 2^20132000320 is an apocalyptic number.

20132000320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20132000320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24046854624).

20132000320 is an abundant number, since it is smaller than the sum of its proper divisors (27961708928).

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

20132000320 is a wasteful number, since it uses less digits than its factorization.

20132000320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202619 (or 202609 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20132000320 its reverse (2300023102), we get a palindrome (22432023422).

The spelling of 20132000320 in words is "twenty billion, one hundred thirty-two million, three hundred twenty", and thus it is an aban number.