343203431 has 2 divisors, whose sum is σ = 343203432. Its totient is φ = 343203430.

The previous prime is 343203407. The next prime is 343203457. The reversal of 343203431 is 134302343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343203431 - 2²² = 339009127 is a prime.

It is a super-2 number, since 2×343203431² = 235577190100343522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 343203397 and 343203406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343203031) 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 as a sum of consecutive naturals, namely, 171601715 + 171601716.

It is an arithmetic number, because the mean of its divisors is an integer number (171601716).

Almost surely, 2^343203431 is an apocalyptic number.

343203431 is a deficient number, since it is larger than the sum of its proper divisors (1).

343203431 is an equidigital number, since it uses as much as digits as its factorization.

343203431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 343203431 is about 18525.7504841234. The cubic root of 343203431 is about 700.1383610853.

Adding to 343203431 its reverse (134302343), we get a palindrome (477505774).

The spelling of 343203431 in words is "three hundred forty-three million, two hundred three thousand, four hundred thirty-one".