212134343 has 4 divisors (see below), whose sum is σ = 212171520. Its totient is φ = 212097168.

The previous prime is 212134327. The next prime is 212134361. The reversal of 212134343 is 343431212.

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 212134343 - 2⁴ = 212134327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212134303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8030 + ... + 22107.

It is an arithmetic number, because the mean of its divisors is an integer number (53042880).

Almost surely, 2^212134343 is an apocalyptic number.

212134343 is a deficient number, since it is larger than the sum of its proper divisors (37177).

212134343 is an equidigital number, since it uses as much as digits as its factorization.

212134343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37176.

The product of its digits is 1728, while the sum is 23.

The square root of 212134343 is about 14564.8324054896. The cubic root of 212134343 is about 596.3991206410.

Adding to 212134343 its reverse (343431212), we get a palindrome (555565555).

The spelling of 212134343 in words is "two hundred twelve million, one hundred thirty-four thousand, three hundred forty-three".