421443334434343 has 8 divisors (see below), whose sum is σ = 453906163998000. Its totient is φ = 388986806517888.

The previous prime is 421443334434289. The next prime is 421443334434391. The reversal of 421443334434343 is 343434433344124.

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 421443334434343 - 2⁹ = 421443334433831 is a prime.

It is a super-2 number, since 2×421443334434343² (a number of 30 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 (421443334432343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1575272893 + ... + 1575540406.

It is an arithmetic number, because the mean of its divisors is an integer number (56738270499750).

Almost surely, 2^{421443334434343} is an apocalyptic number.

421443334434343 is a deficient number, since it is larger than the sum of its proper divisors (32462829563657).

421443334434343 is a wasteful number, since it uses less digits than its factorization.

421443334434343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150823601.

The product of its digits is 23887872, while the sum is 49.

Adding to 421443334434343 its reverse (343434433344124), we get a palindrome (764877767778467).

The spelling of 421443334434343 in words is "four hundred twenty-one trillion, four hundred forty-three billion, three hundred thirty-four million, four hundred thirty-four thousand, three hundred forty-three".