13321230334431 has 4 divisors (see below), whose sum is σ = 17761640445912. Its totient is φ = 8880820222952.

The previous prime is 13321230334393. The next prime is 13321230334457. The reversal of 13321230334431 is 13443303212331.

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 13321230334431 - 2⁶ = 13321230334367 is a prime.

It is a super-2 number, since 2×13321230334431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13321230334392 and 13321230334401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321230333431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2220205055736 + ... + 2220205055741.

It is an arithmetic number, because the mean of its divisors is an integer number (4440410111478).

Almost surely, 2^{13321230334431} is an apocalyptic number.

13321230334431 is a deficient number, since it is larger than the sum of its proper divisors (4440410111481).

13321230334431 is an equidigital number, since it uses as much as digits as its factorization.

13321230334431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440410111480.

The product of its (nonzero) digits is 46656, while the sum is 33.

Adding to 13321230334431 its reverse (13443303212331), we get a palindrome (26764533546762).

The spelling of 13321230334431 in words is "thirteen trillion, three hundred twenty-one billion, two hundred thirty million, three hundred thirty-four thousand, four hundred thirty-one".