420023003 has 4 divisors (see below), whose sum is σ = 426908688. Its totient is φ = 413137320.

The previous prime is 420022969. The next prime is 420023017. The reversal of 420023003 is 300320024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420023003 - 2²⁰ = 418974427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420023083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3442751 + ... + 3442872.

It is an arithmetic number, because the mean of its divisors is an integer number (106727172).

Almost surely, 2^420023003 is an apocalyptic number.

420023003 is a deficient number, since it is larger than the sum of its proper divisors (6885685).

420023003 is an equidigital number, since it uses as much as digits as its factorization.

420023003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6885684.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 420023003 is about 20494.4627399695. The cubic root of 420023003 is about 748.9009104192.

Adding to 420023003 its reverse (300320024), we get a palindrome (720343027).

The spelling of 420023003 in words is "four hundred twenty million, twenty-three thousand, three".