503222320321 has 8 divisors (see below), whose sum is σ = 575152329920. Its totient is φ = 431302587408.

The previous prime is 503222320277. The next prime is 503222320327. The reversal of 503222320321 is 123023222305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 503222320321 - 2²¹ = 503220223169 is a prime.

It is a super-3 number, since 3×503222320321³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (503222320327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2463951 + ... + 2660356.

It is an arithmetic number, because the mean of its divisors is an integer number (71894041240).

Almost surely, 2^503222320321 is an apocalyptic number.

It is an amenable number.

503222320321 is a deficient number, since it is larger than the sum of its proper divisors (71930009599).

503222320321 is a wasteful number, since it uses less digits than its factorization.

503222320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5138343.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 503222320321 its reverse (123023222305), we get a palindrome (626245542626).

It can be divided in two parts, 503222 and 320321, that added together give a 7-th power (823543 = 7⁷).

The spelling of 503222320321 in words is "five hundred three billion, two hundred twenty-two million, three hundred twenty thousand, three hundred twenty-one".