12340130305 has 4 divisors (see below), whose sum is σ = 14808156372. Its totient is φ = 9872104240.

The previous prime is 12340130303. The next prime is 12340130311. The reversal of 12340130305 is 50303104321.

12340130305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50303104321 = 39953 ⋅1259057.

It can be written as a sum of positive squares in 2 ways, for example, as 9123879361 + 3216250944 = 95519^2 + 56712^2 .

It is not a de Polignac number, because 12340130305 - 2¹ = 12340130303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12340130303) 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 3 ways as a sum of consecutive naturals, for example, 1234013026 + ... + 1234013035.

It is an arithmetic number, because the mean of its divisors is an integer number (3702039093).

Almost surely, 2^12340130305 is an apocalyptic number.

It is an amenable number.

12340130305 is a deficient number, since it is larger than the sum of its proper divisors (2468026067).

12340130305 is an equidigital number, since it uses as much as digits as its factorization.

12340130305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468026066.

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 12340130305 its reverse (50303104321), we get a palindrome (62643234626).

The spelling of 12340130305 in words is "twelve billion, three hundred forty million, one hundred thirty thousand, three hundred five".