12320221312312 has 32 divisors (see below), whose sum is σ = 24344733243600. Its totient is φ = 5829052633344.

The previous prime is 12320221312303. The next prime is 12320221312349. The reversal of 12320221312312 is 21321312202321.

It is a congruent 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, 47381533 + ... + 47640844.

Almost surely, 2^{12320221312312} is an apocalyptic number.

It is an amenable number.

12320221312312 is a deficient number, since it is larger than the sum of its proper divisors (12024511931288).

12320221312312 is a wasteful number, since it uses less digits than its factorization.

12320221312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95023255 (or 95023251 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12320221312312 its reverse (21321312202321), we get a palindrome (33641533514633).

The spelling of 12320221312312 in words is "twelve trillion, three hundred twenty billion, two hundred twenty-one million, three hundred twelve thousand, three hundred twelve".