13143342431 has 4 divisors (see below), whose sum is σ = 13157491200. Its totient is φ = 13129193664.

The previous prime is 13143342419. The next prime is 13143342463. The reversal of 13143342431 is 13424334131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13143342431 - 2⁶ = 13143342367 is a prime.

It is a super-2 number, since 2×13143342431² (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 = 13143342394 and 13143342403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143342931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7072991 + ... + 7074848.

It is an arithmetic number, because the mean of its divisors is an integer number (3289372800).

Almost surely, 2^13143342431 is an apocalyptic number.

13143342431 is a deficient number, since it is larger than the sum of its proper divisors (14148769).

13143342431 is an equidigital number, since it uses as much as digits as its factorization.

13143342431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14148768.

The product of its digits is 10368, while the sum is 29.

Adding to 13143342431 its reverse (13424334131), we get a palindrome (26567676562).

The spelling of 13143342431 in words is "thirteen billion, one hundred forty-three million, three hundred forty-two thousand, four hundred thirty-one".