343421743253 has 2 divisors, whose sum is σ = 343421743254. Its totient is φ = 343421743252.

The previous prime is 343421743201. The next prime is 343421743277. The reversal of 343421743253 is 352347124343.

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., 312098760964 + 31322982289 = 558658^2 + 176983^2 .

It is an emirp because it is prime and its reverse (352347124343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343421743253 - 2²⁸ = 343153307797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 343421743253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343421743283) 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, 171710871626 + 171710871627.

It is an arithmetic number, because the mean of its divisors is an integer number (171710871627).

Almost surely, 2^343421743253 is an apocalyptic number.

It is an amenable number.

343421743253 is a deficient number, since it is larger than the sum of its proper divisors (1).

343421743253 is an equidigital number, since it uses as much as digits as its factorization.

343421743253 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.

Adding to 343421743253 its reverse (352347124343), we get a palindrome (695768867596).

The spelling of 343421743253 in words is "three hundred forty-three billion, four hundred twenty-one million, seven hundred forty-three thousand, two hundred fifty-three".