12340403443 has 8 divisors (see below), whose sum is σ = 12438453456. Its totient is φ = 12242412000.

The previous prime is 12340403407. The next prime is 12340403477. The reversal of 12340403443 is 34430404321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12340403443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12340403743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472105 + ... + 497557.

It is an arithmetic number, because the mean of its divisors is an integer number (1554806682).

Almost surely, 2^12340403443 is an apocalyptic number.

12340403443 is a deficient number, since it is larger than the sum of its proper divisors (98050013).

12340403443 is a wasteful number, since it uses less digits than its factorization.

12340403443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29285.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 12340403443 its reverse (34430404321), we get a palindrome (46770807764).

The spelling of 12340403443 in words is "twelve billion, three hundred forty million, four hundred three thousand, four hundred forty-three".