12303222312 has 32 divisors (see below), whose sum is σ = 30839234400. Its totient is φ = 4090250304.

The previous prime is 12303222301. The next prime is 12303222331. The reversal of 12303222312 is 21322230321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667203 + ... + 685394.

It is an arithmetic number, because the mean of its divisors is an integer number (963726075).

Almost surely, 2^12303222312 is an apocalyptic number.

12303222312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12303222312 is an abundant number, since it is smaller than the sum of its proper divisors (18536012088).

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

12303222312 is a wasteful number, since it uses less digits than its factorization.

12303222312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352985 (or 1352981 counting only the distinct ones).

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

Adding to 12303222312 its reverse (21322230321), we get a palindrome (33625452633).

The spelling of 12303222312 in words is "twelve billion, three hundred three million, two hundred twenty-two thousand, three hundred twelve".