13431424243 has 4 divisors (see below), whose sum is σ = 14221508040. Its totient is φ = 12641340448.

The previous prime is 13431424217. The next prime is 13431424267. The reversal of 13431424243 is 34242413431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34242413431 = 2039 ⋅16793729.

It is a cyclic number.

It is not a de Polignac number, because 13431424243 - 2²⁵ = 13397869811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13431424043) 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, 395041873 + ... + 395041906.

It is an arithmetic number, because the mean of its divisors is an integer number (3555377010).

Almost surely, 2^13431424243 is an apocalyptic number.

13431424243 is a deficient number, since it is larger than the sum of its proper divisors (790083797).

13431424243 is an equidigital number, since it uses as much as digits as its factorization.

13431424243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790083796.

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

Adding to 13431424243 its reverse (34242413431), we get a palindrome (47673837674).

The spelling of 13431424243 in words is "thirteen billion, four hundred thirty-one million, four hundred twenty-four thousand, two hundred forty-three".