13113424431 has 24 divisors (see below), whose sum is σ = 19294627664. Its totient is φ = 8579986560.

The previous prime is 13113424417. The next prime is 13113424439. The reversal of 13113424431 is 13442431131.

13113424431 is a `hidden beast` number, since 1 + 311 + 342 + 4 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 13113424431 - 2⁵ = 13113424399 is a prime.

It is a super-2 number, since 2×13113424431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13113424395 and 13113424404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113424439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224760 + ... + 277026.

Almost surely, 2^13113424431 is an apocalyptic number.

13113424431 is a deficient number, since it is larger than the sum of its proper divisors (6181203233).

13113424431 is a wasteful number, since it uses less digits than its factorization.

13113424431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52791 (or 52788 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 13113424431 its reverse (13442431131), we get a palindrome (26555855562).

The spelling of 13113424431 in words is "thirteen billion, one hundred thirteen million, four hundred twenty-four thousand, four hundred thirty-one".