503230502321 has 8 divisors (see below), whose sum is σ = 508369543464. Its totient is φ = 498094531200.

The previous prime is 503230502287. The next prime is 503230502339. The reversal of 503230502321 is 123205032305.

It can be written as a sum of positive squares in 4 ways, for example, as 254483927296 + 248746575025 = 504464^2 + 498745^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 503230502321 - 2¹⁰ = 503230501297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503230502381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437276 + ... + 1094381.

It is an arithmetic number, because the mean of its divisors is an integer number (63546192933).

Almost surely, 2^503230502321 is an apocalyptic number.

It is an amenable number.

503230502321 is a deficient number, since it is larger than the sum of its proper divisors (5139041143).

503230502321 is a wasteful number, since it uses less digits than its factorization.

503230502321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535011.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 503230502321 its reverse (123205032305), we get a palindrome (626435534626).

The spelling of 503230502321 in words is "five hundred three billion, two hundred thirty million, five hundred two thousand, three hundred twenty-one".