13243430129 has 4 divisors (see below), whose sum is σ = 13245465060. Its totient is φ = 13241395200.

The previous prime is 13243430119. The next prime is 13243430149. The reversal of 13243430129 is 92103434231.

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 8346649600 + 4896780529 = 91360^2 + 69977^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13243430129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13243430095 and 13243430104.

It is not an unprimeable number, because it can be changed into a prime (13243430119) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1007672 + ... + 1020729.

It is an arithmetic number, because the mean of its divisors is an integer number (3311366265).

Almost surely, 2^13243430129 is an apocalyptic number.

It is an amenable number.

13243430129 is a deficient number, since it is larger than the sum of its proper divisors (2034931).

13243430129 is an equidigital number, since it uses as much as digits as its factorization.

13243430129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034930.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 13243430129 in words is "thirteen billion, two hundred forty-three million, four hundred thirty thousand, one hundred twenty-nine".