12434345305 has 8 divisors (see below), whose sum is σ = 15088869000. Its totient is φ = 9835706496.

The previous prime is 12434345299. The next prime is 12434345323. The reversal of 12434345305 is 50354343421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 209062681 + 12225282624 = 14459^2 + 110568^2 .

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-12434345305 is a prime.

It is a super-2 number, since 2×12434345305² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13970730 + ... + 13971619.

It is an arithmetic number, because the mean of its divisors is an integer number (1886108625).

Almost surely, 2^12434345305 is an apocalyptic number.

It is an amenable number.

12434345305 is a deficient number, since it is larger than the sum of its proper divisors (2654523695).

12434345305 is an equidigital number, since it uses as much as digits as its factorization.

12434345305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27942443.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 12434345305 its reverse (50354343421), we get a palindrome (62788688726).

The spelling of 12434345305 in words is "twelve billion, four hundred thirty-four million, three hundred forty-five thousand, three hundred five".