343111223 has 16 divisors (see below), whose sum is σ = 424435200. Its totient is φ = 270094176.

The previous prime is 343111207. The next prime is 343111259. The reversal of 343111223 is 322111343.

It is a cyclic number.

It is not a de Polignac number, because 343111223 - 2⁴ = 343111207 is a prime.

It is a super-2 number, since 2×343111223² = 235450622697111458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 343111195 and 343111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343111283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8636 + ... + 27582.

It is an arithmetic number, because the mean of its divisors is an integer number (26527200).

Almost surely, 2^343111223 is an apocalyptic number.

343111223 is a deficient number, since it is larger than the sum of its proper divisors (81323977).

343111223 is a wasteful number, since it uses less digits than its factorization.

343111223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19166.

The product of its digits is 432, while the sum is 20.

The square root of 343111223 is about 18523.2616728264. The cubic root of 343111223 is about 700.0756537281.

Adding to 343111223 its reverse (322111343), we get a palindrome (665222566).

The spelling of 343111223 in words is "three hundred forty-three million, one hundred eleven thousand, two hundred twenty-three".