13243341421 has 16 divisors (see below), whose sum is σ = 13556833920. Its totient is φ = 12934056960.

The previous prime is 13243341409. The next prime is 13243341431. The reversal of 13243341421 is 12414334231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13243341421 - 2¹⁵ = 13243308653 is a prime.

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 13243341421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13243341431) 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, 5584366 + ... + 5586736.

It is an arithmetic number, because the mean of its divisors is an integer number (847302120).

Almost surely, 2^13243341421 is an apocalyptic number.

It is an amenable number.

13243341421 is a deficient number, since it is larger than the sum of its proper divisors (313492499).

13243341421 is an equidigital number, since it uses as much as digits as its factorization.

13243341421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204.

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

Adding to 13243341421 its reverse (12414334231), we get a palindrome (25657675652).

The spelling of 13243341421 in words is "thirteen billion, two hundred forty-three million, three hundred forty-one thousand, four hundred twenty-one".