212344323 has 16 divisors (see below), whose sum is σ = 300182400. Its totient is φ = 133142400.

The previous prime is 212344309. The next prime is 212344333. The reversal of 212344323 is 323443212.

It is not a de Polignac number, because 212344323 - 2⁵ = 212344291 is a prime.

It is a super-2 number, since 2×212344323² = 90180223020656658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212344293 and 212344302.

It is not an unprimeable number, because it can be changed into a prime (212344333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5478 + ... + 21323.

It is an arithmetic number, because the mean of its divisors is an integer number (18761400).

Almost surely, 2^212344323 is an apocalyptic number.

212344323 is a deficient number, since it is larger than the sum of its proper divisors (87838077).

212344323 is a wasteful number, since it uses less digits than its factorization.

212344323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26962.

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

The square root of 212344323 is about 14572.0390817483. The cubic root of 212344323 is about 596.5958365338.

Adding to 212344323 its reverse (323443212), we get a palindrome (535787535).

The spelling of 212344323 in words is "two hundred twelve million, three hundred forty-four thousand, three hundred twenty-three".