343243262342257 has 2 divisors, whose sum is σ = 343243262342258. Its totient is φ = 343243262342256.

The previous prime is 343243262342249. The next prime is 343243262342353. The reversal of 343243262342257 is 752243262342343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270598255916641 + 72645006425616 = 16449871^2 + 8523204^2 .

It is a cyclic number.

It is not a de Polignac number, because 343243262342257 - 2³ = 343243262342249 is a prime.

It is not a weakly prime, because it can be changed into another prime (343243262345257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171621631171128 + 171621631171129.

It is an arithmetic number, because the mean of its divisors is an integer number (171621631171129).

Almost surely, 2^{343243262342257} is an apocalyptic number.

It is an amenable number.

343243262342257 is a deficient number, since it is larger than the sum of its proper divisors (1).

343243262342257 is an equidigital number, since it uses as much as digits as its factorization.

343243262342257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34836480, while the sum is 52.

The spelling of 343243262342257 in words is "three hundred forty-three trillion, two hundred forty-three billion, two hundred sixty-two million, three hundred forty-two thousand, two hundred fifty-seven".