420105103 has 12 divisors (see below), whose sum is σ = 464846704. Its totient is φ = 379368000.

The previous prime is 420104981. The next prime is 420105131. The reversal of 420105103 is 301501024.

It is not a de Polignac number, because 420105103 - 2¹⁷ = 419974031 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 (420105403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6775 + ... + 29767.

Almost surely, 2^420105103 is an apocalyptic number.

420105103 is a deficient number, since it is larger than the sum of its proper divisors (44741601).

420105103 is a wasteful number, since it uses less digits than its factorization.

420105103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23166 (or 23155 counting only the distinct ones).

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

The square root of 420105103 is about 20496.4656221506. The cubic root of 420105103 is about 748.9497020002.

Adding to 420105103 its reverse (301501024), we get a palindrome (721606127).

The spelling of 420105103 in words is "four hundred twenty million, one hundred five thousand, one hundred three".