343323323421 has 16 divisors (see below), whose sum is σ = 521975732544. Its totient is φ = 198847897344.

The previous prime is 343323323411. The next prime is 343323323429. The reversal of 343323323421 is 124323323343.

It is not a de Polignac number, because 343323323421 - 2²³ = 343314934813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343323323429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258915871 + ... + 258917196.

It is an arithmetic number, because the mean of its divisors is an integer number (32623483284).

Almost surely, 2^343323323421 is an apocalyptic number.

It is an amenable number.

343323323421 is a deficient number, since it is larger than the sum of its proper divisors (178652409123).

343323323421 is a wasteful number, since it uses less digits than its factorization.

343323323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517833100.

The product of its digits is 93312, while the sum is 33.

Adding to 343323323421 its reverse (124323323343), we get a palindrome (467646646764).

The spelling of 343323323421 in words is "three hundred forty-three billion, three hundred twenty-three million, three hundred twenty-three thousand, four hundred twenty-one".