421105003 has 8 divisors (see below), whose sum is σ = 461085696. Its totient is φ = 381407400.

The previous prime is 421104991. The next prime is 421105031. The reversal of 421105003 is 300501124.

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

It is not a de Polignac number, because 421105003 - 2⁹ = 421104491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421105073) 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, 67651 + ... + 73612.

It is an arithmetic number, because the mean of its divisors is an integer number (57635712).

Almost surely, 2^421105003 is an apocalyptic number.

421105003 is a deficient number, since it is larger than the sum of its proper divisors (39980693).

421105003 is a wasteful number, since it uses less digits than its factorization.

421105003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141545.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 421105003 is about 20520.8431356999. The cubic root of 421105003 is about 749.5434275934.

Adding to 421105003 its reverse (300501124), we get a palindrome (721606127).

The spelling of 421105003 in words is "four hundred twenty-one million, one hundred five thousand, three".