503112423 has 32 divisors (see below), whose sum is σ = 765868032. Its totient is φ = 290995200.

The previous prime is 503112413. The next prime is 503112431. The reversal of 503112423 is 324211305.

It is not a de Polignac number, because 503112423 - 2⁵ = 503112391 is a prime.

It is a super-2 number, since 2×503112423² = 506244220353861858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 503112423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503112403) 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, 71311 + ... + 78047.

It is an arithmetic number, because the mean of its divisors is an integer number (23933376).

Almost surely, 2^503112423 is an apocalyptic number.

503112423 is a deficient number, since it is larger than the sum of its proper divisors (262755609).

503112423 is a wasteful number, since it uses less digits than its factorization.

503112423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6855.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 503112423 is about 22430.1676988827. The cubic root of 503112423 is about 795.3440083932.

Adding to 503112423 its reverse (324211305), we get a palindrome (827323728).

The spelling of 503112423 in words is "five hundred three million, one hundred twelve thousand, four hundred twenty-three".