343245523553 has 2 divisors, whose sum is σ = 343245523554. Its totient is φ = 343245523552.

The previous prime is 343245523531. The next prime is 343245523559. The reversal of 343245523553 is 355325542343.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289925171809 + 53320351744 = 538447^2 + 230912^2 .

It is an emirp because it is prime and its reverse (355325542343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343245523553 - 2²⁴ = 343228746337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (343245523559) 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, 171622761776 + 171622761777.

It is an arithmetic number, because the mean of its divisors is an integer number (171622761777).

Almost surely, 2^343245523553 is an apocalyptic number.

It is an amenable number.

343245523553 is a deficient number, since it is larger than the sum of its proper divisors (1).

343245523553 is an equidigital number, since it uses as much as digits as its factorization.

343245523553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240000, while the sum is 44.

The spelling of 343245523553 in words is "three hundred forty-three billion, two hundred forty-five million, five hundred twenty-three thousand, five hundred fifty-three".