503103323 has 2 divisors, whose sum is σ = 503103324. Its totient is φ = 503103322.

The previous prime is 503103317. The next prime is 503103361. The reversal of 503103323 is 323301305.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 503103323 - 2¹² = 503099227 is a prime.

It is a super-2 number, since 2×503103323² = 506225907227284658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 503103295 and 503103304.

It is not a weakly prime, because it can be changed into another prime (503103313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251551661 + 251551662.

It is an arithmetic number, because the mean of its divisors is an integer number (251551662).

Almost surely, 2^503103323 is an apocalyptic number.

503103323 is a deficient number, since it is larger than the sum of its proper divisors (1).

503103323 is an equidigital number, since it uses as much as digits as its factorization.

503103323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 503103323 is about 22429.9648461606. The cubic root of 503103323 is about 795.3392131269.

Adding to 503103323 its reverse (323301305), we get a palindrome (826404628).

The spelling of 503103323 in words is "five hundred three million, one hundred three thousand, three hundred twenty-three".