12304315220 has 24 divisors (see below), whose sum is σ = 26537416584. Its totient is φ = 4788706176.

The previous prime is 12304315211. The next prime is 12304315273. The reversal of 12304315220 is 2251340321.

It can be written as a sum of positive squares in 4 ways, for example, as 5287907524 + 7016407696 = 72718^2 + 83764^2 .

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, 8312987 + ... + 8314466.

It is an arithmetic number, because the mean of its divisors is an integer number (1105725691).

Almost surely, 2^12304315220 is an apocalyptic number.

12304315220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12304315220 is an abundant number, since it is smaller than the sum of its proper divisors (14233101364).

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

12304315220 is a wasteful number, since it uses less digits than its factorization.

12304315220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16627499 (or 16627497 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 12304315220 its reverse (2251340321), we get a palindrome (14555655541).

The spelling of 12304315220 in words is "twelve billion, three hundred four million, three hundred fifteen thousand, two hundred twenty".