13431422431 has 8 divisors (see below), whose sum is σ = 15491025440. Its totient is φ = 11407026528.

The previous prime is 13431422371. The next prime is 13431422479. The reversal of 13431422431 is 13422413431.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13431422431 - 2²⁵ = 13397867999 is a prime.

It is a super-2 number, since 2×13431422431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13431422431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431422831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8800956 + ... + 8802481.

It is an arithmetic number, because the mean of its divisors is an integer number (1936378180).

Almost surely, 2^13431422431 is an apocalyptic number.

13431422431 is a deficient number, since it is larger than the sum of its proper divisors (2059603009).

13431422431 is a wasteful number, since it uses less digits than its factorization.

13431422431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17603553.

The product of its digits is 6912, while the sum is 28.

Adding to 13431422431 its reverse (13422413431), we get a palindrome (26853835862).

The spelling of 13431422431 in words is "thirteen billion, four hundred thirty-one million, four hundred twenty-two thousand, four hundred thirty-one".