203103434 has 16 divisors (see below), whose sum is σ = 315938688. Its totient is φ = 97844112.

The previous prime is 203103421. The next prime is 203103449. The reversal of 203103434 is 434301302.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5702 + ... + 20945.

It is an arithmetic number, because the mean of its divisors is an integer number (19746168).

Almost surely, 2^203103434 is an apocalyptic number.

203103434 is a deficient number, since it is larger than the sum of its proper divisors (112835254).

203103434 is a wasteful number, since it uses less digits than its factorization.

203103434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26789.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 203103434 is about 14251.4362083265. The cubic root of 203103434 is about 587.8128675492.

Adding to 203103434 its reverse (434301302), we get a palindrome (637404736).

The spelling of 203103434 in words is "two hundred three million, one hundred three thousand, four hundred thirty-four".