12320342220 has 48 divisors (see below), whose sum is σ = 34550385408. Its totient is φ = 3280336320.

The previous prime is 12320342161. The next prime is 12320342233. The reversal of 12320342220 is 2224302321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119866 + ... + 197505.

It is an arithmetic number, because the mean of its divisors is an integer number (719799696).

Almost surely, 2^12320342220 is an apocalyptic number.

12320342220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12320342220 is an abundant number, since it is smaller than the sum of its proper divisors (22230043188).

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

12320342220 is a wasteful number, since it uses less digits than its factorization.

12320342220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318030 (or 318028 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12320342220 its reverse (2224302321), we get a palindrome (14544644541).

The spelling of 12320342220 in words is "twelve billion, three hundred twenty million, three hundred forty-two thousand, two hundred twenty".