421420103 has 8 divisors (see below), whose sum is σ = 454952400. Its totient is φ = 388047168.

The previous prime is 421420063. The next prime is 421420187. The reversal of 421420103 is 301024124.

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

It is a cyclic number.

It is not a de Polignac number, because 421420103 - 2⁸ = 421419847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421420903) 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, 34313 + ... + 44946.

It is an arithmetic number, because the mean of its divisors is an integer number (56869050).

Almost surely, 2^421420103 is an apocalyptic number.

421420103 is a deficient number, since it is larger than the sum of its proper divisors (33532297).

421420103 is a wasteful number, since it uses less digits than its factorization.

421420103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79681.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 421420103 is about 20528.5192598005. The cubic root of 421420103 is about 749.7303344597.

Adding to 421420103 its reverse (301024124), we get a palindrome (722444227).

The spelling of 421420103 in words is "four hundred twenty-one million, four hundred twenty thousand, one hundred three".