12321314312 has 16 divisors (see below), whose sum is σ = 23847705600. Its totient is φ = 5961926160.

The previous prime is 12321314293. The next prime is 12321314363. The reversal of 12321314312 is 21341312321.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24841112 + ... + 24841607.

It is an arithmetic number, because the mean of its divisors is an integer number (1490481600).

Almost surely, 2^12321314312 is an apocalyptic number.

It is an amenable number.

12321314312 is a deficient number, since it is larger than the sum of its proper divisors (11526391288).

12321314312 is a wasteful number, since it uses less digits than its factorization.

12321314312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49682756 (or 49682752 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 12321314312 its reverse (21341312321), we get a palindrome (33662626633).

The spelling of 12321314312 in words is "twelve billion, three hundred twenty-one million, three hundred fourteen thousand, three hundred twelve".