503141421 has 4 divisors (see below), whose sum is σ = 670855232. Its totient is φ = 335427612.

The previous prime is 503141417. The next prime is 503141437. The reversal of 503141421 is 124141305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 503141421 - 2² = 503141417 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 (503141021) 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, 83856901 + ... + 83856906.

It is an arithmetic number, because the mean of its divisors is an integer number (167713808).

Almost surely, 2^503141421 is an apocalyptic number.

It is an amenable number.

503141421 is a deficient number, since it is larger than the sum of its proper divisors (167713811).

503141421 is a wasteful number, since it uses less digits than its factorization.

503141421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167713810.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 503141421 is about 22430.8140957924. The cubic root of 503141421 is about 795.3592885714.

Adding to 503141421 its reverse (124141305), we get a palindrome (627282726).

The spelling of 503141421 in words is "five hundred three million, one hundred forty-one thousand, four hundred twenty-one".