420315310503 has 12 divisors (see below), whose sum is σ = 662315034888. Its totient is φ = 254736551760.

The previous prime is 420315310489. The next prime is 420315310511. The reversal of 420315310503 is 305013513024.

420315310503 is a `hidden beast` number, since 4 + 2 + 0 + 3 + 153 + 1 + 0 + 503 = 666.

It is not a de Polignac number, because 420315310503 - 2⁴ = 420315310487 is a prime.

It is a super-2 number, since 2×420315310503² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420315310523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2122804500 + ... + 2122804697.

It is an arithmetic number, because the mean of its divisors is an integer number (55192919574).

Almost surely, 2^420315310503 is an apocalyptic number.

420315310503 is a deficient number, since it is larger than the sum of its proper divisors (241999724385).

420315310503 is a wasteful number, since it uses less digits than its factorization.

420315310503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4245609214 (or 4245609211 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 420315310503 its reverse (305013513024), we get a palindrome (725328823527).

The spelling of 420315310503 in words is "four hundred twenty billion, three hundred fifteen million, three hundred ten thousand, five hundred three".