503208430423 has 4 divisors (see below), whose sum is σ = 506117149848. Its totient is φ = 500299711000.

The previous prime is 503208430409. The next prime is 503208430433. The reversal of 503208430423 is 324034802305.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503208430423 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 (503208430433) 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, 1454359453 + ... + 1454359798.

It is an arithmetic number, because the mean of its divisors is an integer number (126529287462).

Almost surely, 2^503208430423 is an apocalyptic number.

503208430423 is a deficient number, since it is larger than the sum of its proper divisors (2908719425).

503208430423 is a wasteful number, since it uses less digits than its factorization.

503208430423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908719424.

The product of its (nonzero) digits is 69120, while the sum is 34.

The spelling of 503208430423 in words is "five hundred three billion, two hundred eight million, four hundred thirty thousand, four hundred twenty-three".