203030216 has 8 divisors (see below), whose sum is σ = 380681670. Its totient is φ = 101515104.

The previous prime is 203030203. The next prime is 203030239. The reversal of 203030216 is 612030302.

It can be written as a sum of positive squares in only one way, i.e., 178329316 + 24700900 = 13354^2 + 4970^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 203030194 and 203030203.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12689381 + ... + 12689396.

Almost surely, 2^203030216 is an apocalyptic number.

It is an amenable number.

203030216 is a deficient number, since it is larger than the sum of its proper divisors (177651454).

203030216 is a wasteful number, since it uses less digits than its factorization.

203030216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25378783 (or 25378779 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 203030216 is about 14248.8671830430. The cubic root of 203030216 is about 587.7422243069.

Adding to 203030216 its reverse (612030302), we get a palindrome (815060518).

The spelling of 203030216 in words is "two hundred three million, thirty thousand, two hundred sixteen".