13143334421 has 16 divisors (see below), whose sum is σ = 15383754624. Its totient is φ = 10996798464.

The previous prime is 13143334397. The next prime is 13143334447. The reversal of 13143334421 is 12443334131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13143334421 - 2⁶ = 13143334357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143334481) 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 15 ways as a sum of consecutive naturals, for example, 83015 + ... + 182148.

It is an arithmetic number, because the mean of its divisors is an integer number (961484664).

Almost surely, 2^13143334421 is an apocalyptic number.

It is an amenable number.

13143334421 is a deficient number, since it is larger than the sum of its proper divisors (2240420203).

13143334421 is an equidigital number, since it uses as much as digits as its factorization.

13143334421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265340.

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

Adding to 13143334421 its reverse (12443334131), we get a palindrome (25586668552).

The spelling of 13143334421 in words is "thirteen billion, one hundred forty-three million, three hundred thirty-four thousand, four hundred twenty-one".