343213221233353 has 2 divisors, whose sum is σ = 343213221233354. Its totient is φ = 343213221233352.

The previous prime is 343213221233321. The next prime is 343213221233369. The reversal of 343213221233353 is 353332122312343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209893798994944 + 133319422238409 = 14487712^2 + 11546403^2 .

It is an emirp because it is prime and its reverse (353332122312343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343213221233353 - 2⁵ = 343213221233321 is a prime.

It is not a weakly prime, because it can be changed into another prime (343213221233453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171606610616676 + 171606610616677.

It is an arithmetic number, because the mean of its divisors is an integer number (171606610616677).

Almost surely, 2^{343213221233353} is an apocalyptic number.

It is an amenable number.

343213221233353 is a deficient number, since it is larger than the sum of its proper divisors (1).

343213221233353 is an equidigital number, since it uses as much as digits as its factorization.

343213221233353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 40.

Adding to 343213221233353 its reverse (353332122312343), we get a palindrome (696545343545696).

The spelling of 343213221233353 in words is "three hundred forty-three trillion, two hundred thirteen billion, two hundred twenty-one million, two hundred thirty-three thousand, three hundred fifty-three".