343334311321 has 2 divisors, whose sum is σ = 343334311322. Its totient is φ = 343334311320.

The previous prime is 343334311301. The next prime is 343334311343. The reversal of 343334311321 is 123113433343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283279417600 + 60054893721 = 532240^2 + 245061^2 .

It is a cyclic number.

It is not a de Polignac number, because 343334311321 - 2⁵ = 343334311289 is a prime.

It is not a weakly prime, because it can be changed into another prime (343334311301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171667155660 + 171667155661.

It is an arithmetic number, because the mean of its divisors is an integer number (171667155661).

Almost surely, 2^343334311321 is an apocalyptic number.

It is an amenable number.

343334311321 is a deficient number, since it is larger than the sum of its proper divisors (1).

343334311321 is an equidigital number, since it uses as much as digits as its factorization.

343334311321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 31.

Adding to 343334311321 its reverse (123113433343), we get a palindrome (466447744664).

The spelling of 343334311321 in words is "three hundred forty-three billion, three hundred thirty-four million, three hundred eleven thousand, three hundred twenty-one".