13221433124431 has 8 divisors (see below), whose sum is σ = 15111247975200. Its totient is φ = 11331877946208.

The previous prime is 13221433124381. The next prime is 13221433124447. The reversal of 13221433124431 is 13442133412231.

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 13221433124431 - 2²⁷ = 13221298906703 is a prime.

It is a super-2 number, since 2×13221433124431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221433134431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64809016 + ... + 65012701.

It is an arithmetic number, because the mean of its divisors is an integer number (1888905996900).

Almost surely, 2^{13221433124431} is an apocalyptic number.

13221433124431 is a deficient number, since it is larger than the sum of its proper divisors (1889814850769).

13221433124431 is a wasteful number, since it uses less digits than its factorization.

13221433124431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129836273.

The product of its digits is 41472, while the sum is 34.

Adding to 13221433124431 its reverse (13442133412231), we get a palindrome (26663566536662).

The spelling of 13221433124431 in words is "thirteen trillion, two hundred twenty-one billion, four hundred thirty-three million, one hundred twenty-four thousand, four hundred thirty-one".