212023303 has 4 divisors (see below), whose sum is σ = 224495280. Its totient is φ = 199551328.

The previous prime is 212023277. The next prime is 212023313. The reversal of 212023303 is 303320212.

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 212023303 - 2¹⁷ = 211892231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212023313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6235963 + ... + 6235996.

It is an arithmetic number, because the mean of its divisors is an integer number (56123820).

Almost surely, 2^212023303 is an apocalyptic number.

212023303 is a deficient number, since it is larger than the sum of its proper divisors (12471977).

212023303 is a wasteful number, since it uses less digits than its factorization.

212023303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12471976.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 212023303 is about 14561.0199848774. The cubic root of 212023303 is about 596.2950423863.

Adding to 212023303 its reverse (303320212), we get a palindrome (515343515).

The spelling of 212023303 in words is "two hundred twelve million, twenty-three thousand, three hundred three".