12430662306565 has 4 divisors (see below), whose sum is σ = 14916794767884. Its totient is φ = 9944529845248.

The previous prime is 12430662306563. The next prime is 12430662306589. The reversal of 12430662306565 is 56560326603421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7507331482401 + 4923330824164 = 2739951^2 + 2218858^2 .

It is a cyclic number.

It is not a de Polignac number, because 12430662306565 - 2¹ = 12430662306563 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12430662306563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243066230652 + ... + 1243066230661.

It is an arithmetic number, because the mean of its divisors is an integer number (3729198691971).

Almost surely, 2^{12430662306565} is an apocalyptic number.

It is an amenable number.

12430662306565 is a deficient number, since it is larger than the sum of its proper divisors (2486132461319).

12430662306565 is an equidigital number, since it uses as much as digits as its factorization.

12430662306565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486132461318.

The product of its (nonzero) digits is 4665600, while the sum is 49.

Adding to 12430662306565 its reverse (56560326603421), we get a palindrome (68990988909986).

The spelling of 12430662306565 in words is "twelve trillion, four hundred thirty billion, six hundred sixty-two million, three hundred six thousand, five hundred sixty-five".