203130404 has 24 divisors (see below), whose sum is σ = 359804928. Its totient is φ = 100336320.

The previous prime is 203130401. The next prime is 203130469. The reversal of 203130404 is 404031302.

203130404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×203130404² = 82523922058406432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203130401) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 142037 + ... + 143459.

It is an arithmetic number, because the mean of its divisors is an integer number (14991872).

Almost surely, 2^203130404 is an apocalyptic number.

It is an amenable number.

203130404 is a deficient number, since it is larger than the sum of its proper divisors (156674524).

203130404 is a wasteful number, since it uses less digits than its factorization.

203130404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 203130404 is about 14252.3823973398. The cubic root of 203130404 is about 587.8388848533.

Adding to 203130404 its reverse (404031302), we get a palindrome (607161706).

The spelling of 203130404 in words is "two hundred three million, one hundred thirty thousand, four hundred four".