13434243523 has 4 divisors (see below), whose sum is σ = 14224493160. Its totient is φ = 12643993888.

The previous prime is 13434243521. The next prime is 13434243577. The reversal of 13434243523 is 32534243431.

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

It is a cyclic number.

It is not a de Polignac number, because 13434243523 - 2¹ = 13434243521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13434243521) 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, 395124793 + ... + 395124826.

It is an arithmetic number, because the mean of its divisors is an integer number (3556123290).

Almost surely, 2^13434243523 is an apocalyptic number.

13434243523 is a deficient number, since it is larger than the sum of its proper divisors (790249637).

13434243523 is an equidigital number, since it uses as much as digits as its factorization.

13434243523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790249636.

The product of its digits is 103680, while the sum is 34.

Adding to 13434243523 its reverse (32534243431), we get a palindrome (45968486954).

The spelling of 13434243523 in words is "thirteen billion, four hundred thirty-four million, two hundred forty-three thousand, five hundred twenty-three".