12312342321 has 16 divisors (see below), whose sum is σ = 16589284800. Its totient is φ = 8122016448.

The previous prime is 12312342319. The next prime is 12312342337. The reversal of 12312342321 is 12324321321.

It is not a de Polignac number, because 12312342321 - 2¹ = 12312342319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12312342291 and 12312342300.

It is not an unprimeable number, because it can be changed into a prime (12312347321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222670 + ... + 272408.

It is an arithmetic number, because the mean of its divisors is an integer number (1036830300).

Almost surely, 2^12312342321 is an apocalyptic number.

It is an amenable number.

12312342321 is a deficient number, since it is larger than the sum of its proper divisors (4276942479).

12312342321 is a wasteful number, since it uses less digits than its factorization.

12312342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50608.

The product of its digits is 1728, while the sum is 24.

Adding to 12312342321 its reverse (12324321321), we get a palindrome (24636663642).

The spelling of 12312342321 in words is "twelve billion, three hundred twelve million, three hundred forty-two thousand, three hundred twenty-one".