12321350120256 has 28 divisors (see below), whose sum is σ = 32600238860352. Its totient is φ = 4107116706688.

The previous prime is 12321350120237. The next prime is 12321350120257. The reversal of 12321350120256 is 65202105312321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321350120257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32086849080 + ... + 32086849463.

Almost surely, 2^{12321350120256} is an apocalyptic number.

12321350120256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12321350120256 is an abundant number, since it is smaller than the sum of its proper divisors (20278888740096).

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

12321350120256 is an equidigital number, since it uses as much as digits as its factorization.

12321350120256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64173698558 (or 64173698548 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 12321350120256 its reverse (65202105312321), we get a palindrome (77523455432577).

The spelling of 12321350120256 in words is "twelve trillion, three hundred twenty-one billion, three hundred fifty million, one hundred twenty thousand, two hundred fifty-six".