12120320312 has 16 divisors (see below), whose sum is σ = 22728846840. Its totient is φ = 6059294496.

The previous prime is 12120320297. The next prime is 12120320363. The reversal of 12120320312 is 21302302121.

12120320312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46643 + ... + 162530.

Almost surely, 2^12120320312 is an apocalyptic number.

It is an amenable number.

12120320312 is a deficient number, since it is larger than the sum of its proper divisors (10608526528).

12120320312 is a wasteful number, since it uses less digits than its factorization.

12120320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216422 (or 216418 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12120320312 its reverse (21302302121), we get a palindrome (33422622433).

The spelling of 12120320312 in words is "twelve billion, one hundred twenty million, three hundred twenty thousand, three hundred twelve".