343104221 has 2 divisors, whose sum is σ = 343104222. Its totient is φ = 343104220.

The previous prime is 343104211. The next prime is 343104239. The reversal of 343104221 is 122401343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243703321 + 99400900 = 15611^2 + 9970^2 .

It is a cyclic number.

It is not a de Polignac number, because 343104221 - 2¹⁴ = 343087837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343104193 and 343104202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343104211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171552110 + 171552111.

It is an arithmetic number, because the mean of its divisors is an integer number (171552111).

Almost surely, 2^343104221 is an apocalyptic number.

It is an amenable number.

343104221 is a deficient number, since it is larger than the sum of its proper divisors (1).

343104221 is an equidigital number, since it uses as much as digits as its factorization.

343104221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 343104221 is about 18523.0726662722. The cubic root of 343104221 is about 700.0708914598.

Adding to 343104221 its reverse (122401343), we get a palindrome (465505564).

The spelling of 343104221 in words is "three hundred forty-three million, one hundred four thousand, two hundred twenty-one".