12020382720 has 352 divisors, whose sum is σ = 43242465600. Its totient is φ = 3166175232.

The previous prime is 12020382719. The next prime is 12020382743. The reversal of 12020382720 is 2728302021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 12302872 + ... + 12303848.

Almost surely, 2^12020382720 is an apocalyptic number.

12020382720 is a gapful number since it is divisible by the number (10) 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 12020382720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21621232800).

12020382720 is an abundant number, since it is smaller than the sum of its proper divisors (31222082880).

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

12020382720 is an equidigital number, since it uses as much as digits as its factorization.

12020382720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

Adding to 12020382720 its reverse (2728302021), we get a palindrome (14748684741).

The spelling of 12020382720 in words is "twelve billion, twenty million, three hundred eighty-two thousand, seven hundred twenty".