420031000503 has 24 divisors (see below), whose sum is σ = 626365509120. Its totient is φ = 270951947280.

The previous prime is 420031000489. The next prime is 420031000507. The reversal of 420031000503 is 305000130024.

It is not a de Polignac number, because 420031000503 - 2⁹ = 420030999991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420031000507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2103868 + ... + 2294846.

It is an arithmetic number, because the mean of its divisors is an integer number (26098562880).

Almost surely, 2^420031000503 is an apocalyptic number.

420031000503 is a deficient number, since it is larger than the sum of its proper divisors (206334508617).

420031000503 is a wasteful number, since it uses less digits than its factorization.

420031000503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198899 (or 198896 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 420031000503 its reverse (305000130024), we get a palindrome (725031130527).

The spelling of 420031000503 in words is "four hundred twenty billion, thirty-one million, five hundred three", and thus it is an aban number.