203201312 has 12 divisors (see below), whose sum is σ = 400052646. Its totient is φ = 101600640.

The previous prime is 203201303. The next prime is 203201321. The reversal of 203201312 is 213102302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (203201303) and next prime (203201321).

It can be written as a sum of positive squares in only one way, i.e., 200392336 + 2808976 = 14156^2 + 1676^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3174989 + ... + 3175052.

Almost surely, 2^203201312 is an apocalyptic number.

It is an amenable number.

203201312 is a deficient number, since it is larger than the sum of its proper divisors (196851334).

203201312 is an equidigital number, since it uses as much as digits as its factorization.

203201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6350051 (or 6350043 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 203201312 is about 14254.8697643998. The cubic root of 203201312 is about 587.9072770940.

Adding to 203201312 its reverse (213102302), we get a palindrome (416303614).

The spelling of 203201312 in words is "two hundred three million, two hundred one thousand, three hundred twelve".