503423031 has 8 divisors (see below), whose sum is σ = 706558720. Its totient is φ = 317951352.

The previous prime is 503423027. The next prime is 503423099. The reversal of 503423031 is 130324305.

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

It is not a de Polignac number, because 503423031 - 2² = 503423027 is a prime.

It is a super-2 number, since 2×503423031² = 506869496282453922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 503422989 and 503423007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503423131) 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, 4415935 + ... + 4416048.

It is an arithmetic number, because the mean of its divisors is an integer number (88319840).

Almost surely, 2^503423031 is an apocalyptic number.

503423031 is a deficient number, since it is larger than the sum of its proper divisors (203135689).

503423031 is a wasteful number, since it uses less digits than its factorization.

503423031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8832005.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 503423031 is about 22437.0905199404. The cubic root of 503423031 is about 795.5076493472.

Adding to 503423031 its reverse (130324305), we get a palindrome (633747336).

The spelling of 503423031 in words is "five hundred three million, four hundred twenty-three thousand, thirty-one".