12313322220 has 24 divisors (see below), whose sum is σ = 34477302384. Its totient is φ = 3283552576.

The previous prime is 12313322141. The next prime is 12313322227. The reversal of 12313322220 is 2222331321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12313322227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102610959 + ... + 102611078.

It is an arithmetic number, because the mean of its divisors is an integer number (1436554266).

Almost surely, 2^12313322220 is an apocalyptic number.

12313322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313322220 is an abundant number, since it is smaller than the sum of its proper divisors (22163980164).

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

12313322220 is a wasteful number, since it uses less digits than its factorization.

12313322220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205222049 (or 205222047 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12313322220 its reverse (2222331321), we get a palindrome (14535653541).

The spelling of 12313322220 in words is "twelve billion, three hundred thirteen million, three hundred twenty-two thousand, two hundred twenty".