213100343 has 2 divisors, whose sum is σ = 213100344. Its totient is φ = 213100342.

The previous prime is 213100331. The next prime is 213100357. The reversal of 213100343 is 343001312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213100343 - 2¹⁰ = 213099319 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213100243) 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, 106550171 + 106550172.

It is an arithmetic number, because the mean of its divisors is an integer number (106550172).

Almost surely, 2^213100343 is an apocalyptic number.

213100343 is a deficient number, since it is larger than the sum of its proper divisors (1).

213100343 is an equidigital number, since it uses as much as digits as its factorization.

213100343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213100343 is about 14597.9568090880. The cubic root of 213100343 is about 597.3030278061.

Adding to 213100343 its reverse (343001312), we get a palindrome (556101655).

The spelling of 213100343 in words is "two hundred thirteen million, one hundred thousand, three hundred forty-three".