13424431243 has 2 divisors, whose sum is σ = 13424431244. Its totient is φ = 13424431242.

The previous prime is 13424431219. The next prime is 13424431249. The reversal of 13424431243 is 34213442431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13424431243 - 2⁹ = 13424430731 is a prime.

It is not a weakly prime, because it can be changed into another prime (13424431249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6712215621 + 6712215622.

It is an arithmetic number, because the mean of its divisors is an integer number (6712215622).

Almost surely, 2^13424431243 is an apocalyptic number.

13424431243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13424431243 is an equidigital number, since it uses as much as digits as its factorization.

13424431243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 31.

Adding to 13424431243 its reverse (34213442431), we get a palindrome (47637873674).

The spelling of 13424431243 in words is "thirteen billion, four hundred twenty-four million, four hundred thirty-one thousand, two hundred forty-three".