343949355323 has 16 divisors (see below), whose sum is σ = 417743483904. Its totient is φ = 276447841920.

The previous prime is 343949355319. The next prime is 343949355329. The reversal of 343949355323 is 323553949343.

It is a happy number.

It is not a de Polignac number, because 343949355323 - 2² = 343949355319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (343949355329) 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 in 15 ways as a sum of consecutive naturals, for example, 5300465 + ... + 5364962.

It is an arithmetic number, because the mean of its divisors is an integer number (26108967744).

Almost surely, 2^343949355323 is an apocalyptic number.

343949355323 is a deficient number, since it is larger than the sum of its proper divisors (73794128581).

343949355323 is a wasteful number, since it uses less digits than its factorization.

343949355323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10665722.

The product of its digits is 15746400, while the sum is 53.

The spelling of 343949355323 in words is "three hundred forty-three billion, nine hundred forty-nine million, three hundred fifty-five thousand, three hundred twenty-three".