343143331 has 4 divisors (see below), whose sum is σ = 347277672. Its totient is φ = 339008992.

The previous prime is 343143299. The next prime is 343143337. The reversal of 343143331 is 133341343.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 343143331 - 2⁵ = 343143299 is a prime.

It is a super-2 number, since 2×343143331² = 235494691219551122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343143296 and 343143305.

It is not an unprimeable number, because it can be changed into a prime (343143337) 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 3 ways as a sum of consecutive naturals, for example, 2067046 + ... + 2067211.

It is an arithmetic number, because the mean of its divisors is an integer number (86819418).

Almost surely, 2^343143331 is an apocalyptic number.

343143331 is a deficient number, since it is larger than the sum of its proper divisors (4134341).

343143331 is an equidigital number, since it uses as much as digits as its factorization.

343143331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134340.

The product of its digits is 3888, while the sum is 25.

The square root of 343143331 is about 18524.1283465647. The cubic root of 343143331 is about 700.0974905033.

Adding to 343143331 its reverse (133341343), we get a palindrome (476484674).

The spelling of 343143331 in words is "three hundred forty-three million, one hundred forty-three thousand, three hundred thirty-one".