343444121 has 2 divisors, whose sum is σ = 343444122. Its totient is φ = 343444120.

The previous prime is 343444099. The next prime is 343444151. The reversal of 343444121 is 121444343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262083721 + 81360400 = 16189^2 + 9020^2 .

It is an emirp because it is prime and its reverse (121444343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343444121 - 2¹⁸ = 343181977 is a prime.

It is not a weakly prime, because it can be changed into another prime (343444151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171722060 + 171722061.

It is an arithmetic number, because the mean of its divisors is an integer number (171722061).

Almost surely, 2^343444121 is an apocalyptic number.

It is an amenable number.

343444121 is a deficient number, since it is larger than the sum of its proper divisors (1).

343444121 is an equidigital number, since it uses as much as digits as its factorization.

343444121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 343444121 is about 18532.2454386941. The cubic root of 343444121 is about 700.3019928253.

Adding to 343444121 its reverse (121444343), we get a palindrome (464888464).

The spelling of 343444121 in words is "three hundred forty-three million, four hundred forty-four thousand, one hundred twenty-one".