212323443 has 8 divisors (see below), whose sum is σ = 283279056. Its totient is φ = 141458400.

The previous prime is 212323439. The next prime is 212323453. The reversal of 212323443 is 344323212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212323443 - 2² = 212323439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212323403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16968 + ... + 26693.

It is an arithmetic number, because the mean of its divisors is an integer number (35409882).

Almost surely, 2^212323443 is an apocalyptic number.

212323443 is a deficient number, since it is larger than the sum of its proper divisors (70955613).

212323443 is a wasteful number, since it uses less digits than its factorization.

212323443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45285.

The product of its digits is 3456, while the sum is 24.

The square root of 212323443 is about 14571.3226235644. The cubic root of 212323443 is about 596.5762812989.

Adding to 212323443 its reverse (344323212), we get a palindrome (556646655).

The spelling of 212323443 in words is "two hundred twelve million, three hundred twenty-three thousand, four hundred forty-three".