343033201321 has 4 divisors (see below), whose sum is σ = 343034761732. Its totient is φ = 343031640912.

The previous prime is 343033201271. The next prime is 343033201331. The reversal of 343033201321 is 123102330343.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110497072921 + 232536128400 = 332411^2 + 482220^2 .

It is a cyclic number.

It is not a de Polignac number, because 343033201321 - 2⁷ = 343033201193 is a prime.

It is a super-2 number, since 2×343033201321² (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 (343033201331) 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 3 ways as a sum of consecutive naturals, for example, 383070 + ... + 912583.

It is an arithmetic number, because the mean of its divisors is an integer number (85758690433).

Almost surely, 2^343033201321 is an apocalyptic number.

It is an amenable number.

343033201321 is a deficient number, since it is larger than the sum of its proper divisors (1560411).

343033201321 is a wasteful number, since it uses less digits than its factorization.

343033201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560410.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 343033201321 its reverse (123102330343), we get a palindrome (466135531664).

The spelling of 343033201321 in words is "three hundred forty-three billion, thirty-three million, two hundred one thousand, three hundred twenty-one".