203142303 has 64 divisors (see below), whose sum is σ = 383308800. Its totient is φ = 103420800.

The previous prime is 203142301. The next prime is 203142311. The reversal of 203142303 is 303241302.

It is not a de Polignac number, because 203142303 - 2¹ = 203142301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203142301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69828 + ... + 72678.

It is an arithmetic number, because the mean of its divisors is an integer number (5989200).

Almost surely, 2^203142303 is an apocalyptic number.

203142303 is a deficient number, since it is larger than the sum of its proper divisors (180166497).

203142303 is a wasteful number, since it uses less digits than its factorization.

203142303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909 (or 2903 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 203142303 is about 14252.7998302088. The cubic root of 203142303 is about 587.8503627974.

Adding to 203142303 its reverse (303241302), we get a palindrome (506383605).

The spelling of 203142303 in words is "two hundred three million, one hundred forty-two thousand, three hundred three".