12321013321255 has 16 divisors (see below), whose sum is σ = 14797539993600. Its totient is φ = 9848596132512.

The previous prime is 12321013321237. The next prime is 12321013321291. The reversal of 12321013321255 is 55212331012321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12321013321255 - 2³³ = 12312423386663 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70990492 + ... + 71163838.

It is an arithmetic number, because the mean of its divisors is an integer number (924846249600).

Almost surely, 2^{12321013321255} is an apocalyptic number.

12321013321255 is a deficient number, since it is larger than the sum of its proper divisors (2476526672345).

12321013321255 is a wasteful number, since it uses less digits than its factorization.

12321013321255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185118.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 12321013321255 its reverse (55212331012321), we get a palindrome (67533344333576).

The spelling of 12321013321255 in words is "twelve trillion, three hundred twenty-one billion, thirteen million, three hundred twenty-one thousand, two hundred fifty-five".