344202121 has 2 divisors, whose sum is σ = 344202122. Its totient is φ = 344202120.

The previous prime is 344202113. The next prime is 344202161. The reversal of 344202121 is 121202443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248377600 + 95824521 = 15760^2 + 9789^2 .

It is an emirp because it is prime and its reverse (121202443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344202121 - 2³ = 344202113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344202101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172101060 + 172101061.

It is an arithmetic number, because the mean of its divisors is an integer number (172101061).

Almost surely, 2^344202121 is an apocalyptic number.

It is an amenable number.

344202121 is a deficient number, since it is larger than the sum of its proper divisors (1).

344202121 is an equidigital number, since it uses as much as digits as its factorization.

344202121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 344202121 is about 18552.6850078365. The cubic root of 344202121 is about 700.8168158910.

Adding to 344202121 its reverse (121202443), we get a palindrome (465404564).

The spelling of 344202121 in words is "three hundred forty-four million, two hundred two thousand, one hundred twenty-one".