13401424431 has 8 divisors (see below), whose sum is σ = 19853962160. Its totient is φ = 8934282936.

The previous prime is 13401424409. The next prime is 13401424459. The reversal of 13401424431 is 13442410431.

13401424431 is a `hidden beast` number, since 13 + 401 + 4 + 244 + 3 + 1 = 666.

13401424431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13401424431 - 2¹³ = 13401416239 is a prime.

It is a super-2 number, since 2×13401424431² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 496349053 = 13401424431 / (1 + 3 + 4 + 0 + 1 + 4 + 2 + 4 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13401424395 and 13401424404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401424331) 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, 248174500 + ... + 248174553.

It is an arithmetic number, because the mean of its divisors is an integer number (2481745270).

Almost surely, 2^13401424431 is an apocalyptic number.

13401424431 is a deficient number, since it is larger than the sum of its proper divisors (6452537729).

13401424431 is an equidigital number, since it uses as much as digits as its factorization.

13401424431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496349062 (or 496349056 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 13401424431 its reverse (13442410431), we get a palindrome (26843834862).

The spelling of 13401424431 in words is "thirteen billion, four hundred one million, four hundred twenty-four thousand, four hundred thirty-one".