212304323 has 16 divisors (see below), whose sum is σ = 267321600. Its totient is φ = 163788000.

The previous prime is 212304319. The next prime is 212304341. The reversal of 212304323 is 323403212.

It is a cyclic number.

It is not a de Polignac number, because 212304323 - 2² = 212304319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212304295 and 212304304.

It is not an unprimeable number, because it can be changed into a prime (212324323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5873 + ... + 21426.

It is an arithmetic number, because the mean of its divisors is an integer number (16707600).

Almost surely, 2^212304323 is an apocalyptic number.

212304323 is a deficient number, since it is larger than the sum of its proper divisors (55017277).

212304323 is a wasteful number, since it uses less digits than its factorization.

212304323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27418.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 212304323 is about 14570.6665255918. Note that the first 3 decimals coincide. The cubic root of 212304323 is about 596.5583732733.

Adding to 212304323 its reverse (323403212), we get a palindrome (535707535).

The spelling of 212304323 in words is "two hundred twelve million, three hundred four thousand, three hundred twenty-three".