421324003 has 8 divisors (see below), whose sum is σ = 425811888. Its totient is φ = 416849664.

The previous prime is 421323997. The next prime is 421324009. The reversal of 421324003 is 300423124.

It is an interprime number because it is at equal distance from previous prime (421323997) and next prime (421324009).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421324003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421324009) 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, 66700 + ... + 72742.

It is an arithmetic number, because the mean of its divisors is an integer number (53226486).

Almost surely, 2^421324003 is an apocalyptic number.

421324003 is a deficient number, since it is larger than the sum of its proper divisors (4487885).

421324003 is a wasteful number, since it uses less digits than its factorization.

421324003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6773.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 421324003 is about 20526.1784801750. The cubic root of 421324003 is about 749.6733410051.

Adding to 421324003 its reverse (300423124), we get a palindrome (721747127).

The spelling of 421324003 in words is "four hundred twenty-one million, three hundred twenty-four thousand, three".