203225234503 has 16 divisors (see below), whose sum is σ = 232277906880. Its totient is φ = 176645894656.

The previous prime is 203225234491. The next prime is 203225234521. The reversal of 203225234503 is 305432522302.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203225234503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203225232503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8950000 + ... + 8972677.

It is an arithmetic number, because the mean of its divisors is an integer number (14517369180).

Almost surely, 2^203225234503 is an apocalyptic number.

203225234503 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

203225234503 is a deficient number, since it is larger than the sum of its proper divisors (29052672377).

203225234503 is a wasteful number, since it uses less digits than its factorization.

203225234503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17922746.

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 203225234503 its reverse (305432522302), we get a palindrome (508657756805).

The spelling of 203225234503 in words is "two hundred three billion, two hundred twenty-five million, two hundred thirty-four thousand, five hundred three".