13424434431 has 8 divisors (see below), whose sum is σ = 18166399104. Its totient is φ = 8816046360.

The previous prime is 13424434409. The next prime is 13424434447. The reversal of 13424434431 is 13443442431.

13424434431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13424434431 - 2¹¹ = 13424432383 is a prime.

It is a super-3 number, since 3×13424434431³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 13424434392 and 13424434401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13424434481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33393915 + ... + 33394316.

It is an arithmetic number, because the mean of its divisors is an integer number (2270799888).

Almost surely, 2^13424434431 is an apocalyptic number.

13424434431 is a deficient number, since it is larger than the sum of its proper divisors (4741964673).

13424434431 is an equidigital number, since it uses as much as digits as its factorization.

13424434431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66788301.

The product of its digits is 55296, while the sum is 33.

Adding to 13424434431 its reverse (13443442431), we get a palindrome (26867876862).

The spelling of 13424434431 in words is "thirteen billion, four hundred twenty-four million, four hundred thirty-four thousand, four hundred thirty-one".