212323020223 has 4 divisors (see below), whose sum is σ = 212381628048. Its totient is φ = 212264412400.

The previous prime is 212323020211. The next prime is 212323020289. The reversal of 212323020223 is 322020323212.

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 212323020223 - 2³³ = 203733085631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212323020194 and 212323020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212323021223) 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 3 ways as a sum of consecutive naturals, for example, 29298478 + ... + 29305723.

It is an arithmetic number, because the mean of its divisors is an integer number (53095407012).

Almost surely, 2^212323020223 is an apocalyptic number.

212323020223 is a deficient number, since it is larger than the sum of its proper divisors (58607825).

212323020223 is an equidigital number, since it uses as much as digits as its factorization.

212323020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58607824.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 212323020223 its reverse (322020323212), we get a palindrome (534343343435).

The spelling of 212323020223 in words is "two hundred twelve billion, three hundred twenty-three million, twenty thousand, two hundred twenty-three".