343121235253 has 4 divisors (see below), whose sum is σ = 346518475308. Its totient is φ = 339723995200.

The previous prime is 343121235251. The next prime is 343121235313. The reversal of 343121235253 is 352532121343.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 178355871684 + 164765363569 = 422322^2 + 405913^2 .

It is a cyclic number.

It is not a de Polignac number, because 343121235253 - 2¹ = 343121235251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343121235251) 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 in 3 ways as a sum of consecutive naturals, for example, 1698619876 + ... + 1698620077.

It is an arithmetic number, because the mean of its divisors is an integer number (86629618827).

Almost surely, 2^343121235253 is an apocalyptic number.

It is an amenable number.

343121235253 is a deficient number, since it is larger than the sum of its proper divisors (3397240055).

343121235253 is a wasteful number, since it uses less digits than its factorization.

343121235253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397240054.

The product of its digits is 64800, while the sum is 34.

Adding to 343121235253 its reverse (352532121343), we get a palindrome (695653356596).

The spelling of 343121235253 in words is "three hundred forty-three billion, one hundred twenty-one million, two hundred thirty-five thousand, two hundred fifty-three".