503203230423 has 6 divisors (see below), whose sum is σ = 726849110624. Its totient is φ = 335468820276.

The previous prime is 503203230377. The next prime is 503203230427. The reversal of 503203230423 is 324032302305.

503203230423 is a `hidden beast` number, since 5 + 0 + 3 + 2 + 0 + 3 + 230 + 423 = 666.

It is not a de Polignac number, because 503203230423 - 2¹⁴ = 503203214039 is a prime.

It is a super-2 number, since 2×503203230423² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503203230427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27955735015 + ... + 27955735032.

Almost surely, 2^503203230423 is an apocalyptic number.

503203230423 is a deficient number, since it is larger than the sum of its proper divisors (223645880201).

503203230423 is a wasteful number, since it uses less digits than its factorization.

503203230423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55911470053 (or 55911470050 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

Adding to 503203230423 its reverse (324032302305), we get a palindrome (827235532728).

The spelling of 503203230423 in words is "five hundred three billion, two hundred three million, two hundred thirty thousand, four hundred twenty-three".