203423212 has 12 divisors (see below), whose sum is σ = 359257360. Its totient is φ = 100778256.

The previous prime is 203423179. The next prime is 203423221. The reversal of 203423212 is 212324302.

It is a self number, because there is not a number n which added to its sum of digits gives 203423212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232848 + ... + 233719.

Almost surely, 2^203423212 is an apocalyptic number.

It is an amenable number.

203423212 is a deficient number, since it is larger than the sum of its proper divisors (155834148).

203423212 is a wasteful number, since it uses less digits than its factorization.

203423212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466680 (or 466678 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 203423212 is about 14262.6509457394. The cubic root of 203423212 is about 588.1212015108.

Adding to 203423212 its reverse (212324302), we get a palindrome (415747514).

The spelling of 203423212 in words is "two hundred three million, four hundred twenty-three thousand, two hundred twelve".