423001503 has 24 divisors (see below), whose sum is σ = 654076800. Its totient is φ = 262624464.

The previous prime is 423001477. The next prime is 423001507. The reversal of 423001503 is 305100324.

It is not a de Polignac number, because 423001503 - 2²² = 418807199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423001507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10875 + ... + 31052.

It is an arithmetic number, because the mean of its divisors is an integer number (27253200).

Almost surely, 2^423001503 is an apocalyptic number.

423001503 is a deficient number, since it is larger than the sum of its proper divisors (231075297).

423001503 is a wasteful number, since it uses less digits than its factorization.

423001503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42011 (or 42008 counting only the distinct ones).

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

The square root of 423001503 is about 20567.0003403510. Note that the first 3 decimals coincide. The cubic root of 423001503 is about 750.6669640361. Note that the first 3 decimals are identical.

Adding to 423001503 its reverse (305100324), we get a palindrome (728101827).

The spelling of 423001503 in words is "four hundred twenty-three million, one thousand, five hundred three".