12343004321 has 4 divisors (see below), whose sum is σ = 12354551700. Its totient is φ = 12331456944.

The previous prime is 12343004293. The next prime is 12343004347. The reversal of 12343004321 is 12340034321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7517757025 + 4825247296 = 86705^2 + 69464^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12343004321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12343004221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5772086 + ... + 5774223.

It is an arithmetic number, because the mean of its divisors is an integer number (3088637925).

Almost surely, 2^12343004321 is an apocalyptic number.

It is an amenable number.

12343004321 is a deficient number, since it is larger than the sum of its proper divisors (11547379).

12343004321 is a wasteful number, since it uses less digits than its factorization.

12343004321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11547378.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12343004321 its reverse (12340034321), we get a palindrome (24683038642).

The spelling of 12343004321 in words is "twelve billion, three hundred forty-three million, four thousand, three hundred twenty-one".