421323224034343 has 16 divisors (see below), whose sum is σ = 435940747169760. Its totient is φ = 406711649142400.

The previous prime is 421323224034329. The next prime is 421323224034389. The reversal of 421323224034343 is 343430422323124.

It is not a de Polignac number, because 421323224034343 - 2⁵ = 421323224034311 is a prime.

It is a super-2 number, since 2×421323224034343² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421323224034296 and 421323224034305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421323224032343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7651908033 + ... + 7651963093.

It is an arithmetic number, because the mean of its divisors is an integer number (27246296698110).

Almost surely, 2^{421323224034343} is an apocalyptic number.

421323224034343 is a deficient number, since it is larger than the sum of its proper divisors (14617523135417).

421323224034343 is a wasteful number, since it uses less digits than its factorization.

421323224034343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104258.

The product of its (nonzero) digits is 995328, while the sum is 40.

Adding to 421323224034343 its reverse (343430422323124), we get a palindrome (764753646357467).

The spelling of 421323224034343 in words is "four hundred twenty-one trillion, three hundred twenty-three billion, two hundred twenty-four million, thirty-four thousand, three hundred forty-three".