343231543 has 2 divisors, whose sum is σ = 343231544. Its totient is φ = 343231542.

The previous prime is 343231463. The next prime is 343231549. The reversal of 343231543 is 345132343.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 343231543 - 2²⁵ = 309677111 is a prime.

It is a super-2 number, since 2×343231543² = 235615784220321698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343231549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171615771 + 171615772.

It is an arithmetic number, because the mean of its divisors is an integer number (171615772).

Almost surely, 2^343231543 is an apocalyptic number.

343231543 is a deficient number, since it is larger than the sum of its proper divisors (1).

343231543 is an equidigital number, since it uses as much as digits as its factorization.

343231543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 28.

The square root of 343231543 is about 18526.5091962841. The cubic root of 343231543 is about 700.1574768152.

Adding to 343231543 its reverse (345132343), we get a palindrome (688363886).

The spelling of 343231543 in words is "three hundred forty-three million, two hundred thirty-one thousand, five hundred forty-three".