343540043321 has 8 divisors (see below), whose sum is σ = 345464188800. Its totient is φ = 341619954480.

The previous prime is 343540043293. The next prime is 343540043333. The reversal of 343540043321 is 123340045343.

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 343540043321 - 2¹⁰ = 343540042297 is a prime.

It is a super-2 number, since 2×343540043321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343540040321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844235 + ... + 1183136.

It is an arithmetic number, because the mean of its divisors is an integer number (43183023600).

Almost surely, 2^343540043321 is an apocalyptic number.

It is an amenable number.

343540043321 is a deficient number, since it is larger than the sum of its proper divisors (1924145479).

343540043321 is a wasteful number, since it uses less digits than its factorization.

343540043321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028319.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 343540043321 its reverse (123340045343), we get a palindrome (466880088664).

The spelling of 343540043321 in words is "three hundred forty-three billion, five hundred forty million, forty-three thousand, three hundred twenty-one".