12321351455 has 8 divisors (see below), whose sum is σ = 16897853472. Its totient is φ = 8448926688.

The previous prime is 12321351433. The next prime is 12321351491. The reversal of 12321351455 is 55415312321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12321351455 - 2⁶ = 12321351391 is a prime.

It is a Duffinian number.

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, 176019272 + ... + 176019341.

It is an arithmetic number, because the mean of its divisors is an integer number (2112231684).

Almost surely, 2^12321351455 is an apocalyptic number.

12321351455 is a deficient number, since it is larger than the sum of its proper divisors (4576502017).

12321351455 is an equidigital number, since it uses as much as digits as its factorization.

12321351455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352038625.

The product of its digits is 18000, while the sum is 32.

Adding to 12321351455 its reverse (55415312321), we get a palindrome (67736663776).

The spelling of 12321351455 in words is "twelve billion, three hundred twenty-one million, three hundred fifty-one thousand, four hundred fifty-five".