203034031403 has 4 divisors (see below), whose sum is σ = 232038893040. Its totient is φ = 174029169768.

The previous prime is 203034031399. The next prime is 203034031411. The reversal of 203034031403 is 304130430302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203034031403 - 2² = 203034031399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203034031433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14502430808 + ... + 14502430821.

It is an arithmetic number, because the mean of its divisors is an integer number (58009723260).

Almost surely, 2^203034031403 is an apocalyptic number.

203034031403 is a deficient number, since it is larger than the sum of its proper divisors (29004861637).

203034031403 is an equidigital number, since it uses as much as digits as its factorization.

203034031403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29004861636.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 203034031403 its reverse (304130430302), we get a palindrome (507164461705).

The spelling of 203034031403 in words is "two hundred three billion, thirty-four million, thirty-one thousand, four hundred three".