203315412 has 12 divisors (see below), whose sum is σ = 474402656. Its totient is φ = 67771800.

The previous prime is 203315401. The next prime is 203315419. The reversal of 203315412 is 214513302.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203315419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8471464 + ... + 8471487.

Almost surely, 2^203315412 is an apocalyptic number.

It is an amenable number.

203315412 is an abundant number, since it is smaller than the sum of its proper divisors (271087244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203315412 is a wasteful number, since it uses less digits than its factorization.

203315412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16942958 (or 16942956 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 203315412 is about 14258.8713438336. The cubic root of 203315412 is about 588.0172955253.

Adding to 203315412 its reverse (214513302), we get a palindrome (417828714).

It can be divided in two parts, 203 and 315412, that added together give a triangular number (315615 = T₇₉₄).

The spelling of 203315412 in words is "two hundred three million, three hundred fifteen thousand, four hundred twelve".