421103 has 2 divisors, whose sum is σ = 421104. Its totient is φ = 421102.

The previous prime is 421093. The next prime is 421121. The reversal of 421103 is 301124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421103 - 2¹² = 417007 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421123) 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 as a sum of consecutive naturals, namely, 210551 + 210552.

It is an arithmetic number, because the mean of its divisors is an integer number (210552).

2⁴²¹¹⁰³ is an apocalyptic number.

421103 is a deficient number, since it is larger than the sum of its proper divisors (1).

421103 is an equidigital number, since it uses as much as digits as its factorization.

421103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 421103 is about 648.9244948374. The cubic root of 421103 is about 74.9542239182.

Adding to 421103 its reverse (301124), we get a palindrome (722227).

The spelling of 421103 in words is "four hundred twenty-one thousand, one hundred three", and thus it is an iban number.