12340205342 has 16 divisors (see below), whose sum is σ = 18569140272. Its totient is φ = 6150518400.

The previous prime is 12340205333. The next prime is 12340205399. The reversal of 12340205342 is 24350204321.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1058288 + ... + 1069884.

It is an arithmetic number, because the mean of its divisors is an integer number (1160571267).

Almost surely, 2^12340205342 is an apocalyptic number.

12340205342 is a deficient number, since it is larger than the sum of its proper divisors (6228934930).

12340205342 is a wasteful number, since it uses less digits than its factorization.

12340205342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13243.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 12340205342 its reverse (24350204321), we get a palindrome (36690409663).

The spelling of 12340205342 in words is "twelve billion, three hundred forty million, two hundred five thousand, three hundred forty-two".