503223431421 has 32 divisors (see below), whose sum is σ = 742365987840. Its totient is φ = 301787697024.

The previous prime is 503223431411. The next prime is 503223431429. The reversal of 503223431421 is 124134322305.

It is not a de Polignac number, because 503223431421 - 2⁹ = 503223430909 is a prime.

It is a super-2 number, since 2×503223431421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503223431429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1221295 + ... + 1580508.

It is an arithmetic number, because the mean of its divisors is an integer number (23198937120).

Almost surely, 2^503223431421 is an apocalyptic number.

It is an amenable number.

503223431421 is a deficient number, since it is larger than the sum of its proper divisors (239142556419).

503223431421 is a wasteful number, since it uses less digits than its factorization.

503223431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801985.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 503223431421 its reverse (124134322305), we get a palindrome (627357753726).

The spelling of 503223431421 in words is "five hundred three billion, two hundred twenty-three million, four hundred thirty-one thousand, four hundred twenty-one".