20132201320 has 128 divisors (see below), whose sum is σ = 56559513600. Its totient is φ = 6265555200.

The previous prime is 20132201281. The next prime is 20132201333. The reversal of 20132201320 is 2310223102.

It is a junction number, because it is equal to n+sod(n) for n = 20132201294 and 20132201303.

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, 2209975 + ... + 2219065.

It is an arithmetic number, because the mean of its divisors is an integer number (441871200).

Almost surely, 2^20132201320 is an apocalyptic number.

20132201320 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 20132201320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28279756800).

20132201320 is an abundant number, since it is smaller than the sum of its proper divisors (36427312280).

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

20132201320 is a wasteful number, since it uses less digits than its factorization.

20132201320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9839 (or 9835 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20132201320 its reverse (2310223102), we get a palindrome (22442424422).

The spelling of 20132201320 in words is "twenty billion, one hundred thirty-two million, two hundred one thousand, three hundred twenty".