420421103 has 2 divisors, whose sum is σ = 420421104. Its totient is φ = 420421102.

The previous prime is 420421097. The next prime is 420421109. The reversal of 420421103 is 301124024.

It is a balanced prime because it is at equal distance from previous prime (420421097) and next prime (420421109).

It is a cyclic number.

It is not a de Polignac number, because 420421103 - 2¹² = 420417007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420421109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210210551 + 210210552.

It is an arithmetic number, because the mean of its divisors is an integer number (210210552).

Almost surely, 2^420421103 is an apocalyptic number.

420421103 is a deficient number, since it is larger than the sum of its proper divisors (1).

420421103 is an equidigital number, since it uses as much as digits as its factorization.

420421103 is an evil number, because the sum of its binary digits is even.

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

The square root of 420421103 is about 20504.1728192093. The cubic root of 420421103 is about 749.1374397742.

Adding to 420421103 its reverse (301124024), we get a palindrome (721545127).

The spelling of 420421103 in words is "four hundred twenty million, four hundred twenty-one thousand, one hundred three".