343353421247 has 2 divisors, whose sum is σ = 343353421248. Its totient is φ = 343353421246.

The previous prime is 343353421231. The next prime is 343353421441. The reversal of 343353421247 is 742124353343.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343353421247 - 2⁴ = 343353421231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343353421217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171676710623 + 171676710624.

It is an arithmetic number, because the mean of its divisors is an integer number (171676710624).

Almost surely, 2^343353421247 is an apocalyptic number.

343353421247 is a deficient number, since it is larger than the sum of its proper divisors (1).

343353421247 is an equidigital number, since it uses as much as digits as its factorization.

343353421247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 41.

The spelling of 343353421247 in words is "three hundred forty-three billion, three hundred fifty-three million, four hundred twenty-one thousand, two hundred forty-seven".