12340404321 has 64 divisors (see below), whose sum is σ = 19543265280. Its totient is φ = 6780614400.

The previous prime is 12340404299. The next prime is 12340404331.

12340404321 is nontrivially palindromic in base 10.

12340404321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12340404321 - 2⁹ = 12340403809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12340404291 and 12340404300.

It is not an unprimeable number, because it can be changed into a prime (12340404331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24533356 + ... + 24533858.

It is an arithmetic number, because the mean of its divisors is an integer number (305363520).

Almost surely, 2^12340404321 is an apocalyptic number.

It is an amenable number.

12340404321 is a deficient number, since it is larger than the sum of its proper divisors (7202860959).

12340404321 is a wasteful number, since it uses less digits than its factorization.

12340404321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926.

The product of its (nonzero) digits is 2304, while the sum is 24.

The spelling of 12340404321 in words is "twelve billion, three hundred forty million, four hundred four thousand, three hundred twenty-one".