12340205344 has 24 divisors (see below), whose sum is σ = 25723885068. Its totient is φ = 5807155200.

The previous prime is 12340205333. The next prime is 12340205399. The reversal of 12340205344 is 44350204321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12141395344 + 198810000 = 110188^2 + 14100^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11341557 + ... + 11342644.

Almost surely, 2^12340205344 is an apocalyptic number.

It is an amenable number.

12340205344 is an abundant number, since it is smaller than the sum of its proper divisors (13383679724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12340205344 is a wasteful number, since it uses less digits than its factorization.

12340205344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22684228 (or 22684220 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 12340205344 its reverse (44350204321), we get a palindrome (56690409665).

The spelling of 12340205344 in words is "twelve billion, three hundred forty million, two hundred five thousand, three hundred forty-four".