12303320220 has 72 divisors (see below), whose sum is σ = 37650399696. Its totient is φ = 3251845632.

The previous prime is 12303320213. The next prime is 12303320279. The reversal of 12303320220 is 2202330321.

It is a happy number.

12303320220 is a `hidden beast` number, since 123 + 0 + 3 + 320 + 220 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12303320193 and 12303320202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282102 + ... + 322781.

It is an arithmetic number, because the mean of its divisors is an integer number (522922218).

Almost surely, 2^12303320220 is an apocalyptic number.

12303320220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12303320220 is an abundant number, since it is smaller than the sum of its proper divisors (25347079476).

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

12303320220 is a wasteful number, since it uses less digits than its factorization.

12303320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605011 (or 605006 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 12303320220 its reverse (2202330321), we get a palindrome (14505650541).

The spelling of 12303320220 in words is "twelve billion, three hundred three million, three hundred twenty thousand, two hundred twenty".