212323404223 has 8 divisors (see below), whose sum is σ = 245057847840. Its totient is φ = 180189592800.

The previous prime is 212323404199. The next prime is 212323404287. The reversal of 212323404223 is 322404323212.

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

It is a de Polignac number, because none of the positive numbers 2^k-212323404223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212323404191 and 212323404200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212323504223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150157288 + ... + 150158701.

It is an arithmetic number, because the mean of its divisors is an integer number (30632230980).

Almost surely, 2^212323404223 is an apocalyptic number.

212323404223 is a deficient number, since it is larger than the sum of its proper divisors (32734443617).

212323404223 is a wasteful number, since it uses less digits than its factorization.

212323404223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300316097.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 212323404223 its reverse (322404323212), we get a palindrome (534727727435).

The spelling of 212323404223 in words is "two hundred twelve billion, three hundred twenty-three million, four hundred four thousand, two hundred twenty-three".