421341101 has 2 divisors, whose sum is σ = 421341102. Its totient is φ = 421341100.

The previous prime is 421341097. The next prime is 421341103. The reversal of 421341101 is 101143124.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220552201 + 200788900 = 14851^2 + 14170^2 .

It is a cyclic number.

It is not a de Polignac number, because 421341101 - 2² = 421341097 is a prime.

Together with 421341103, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_22412051 and since 421341101 and 22412051 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421341101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421341103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210670550 + 210670551.

It is an arithmetic number, because the mean of its divisors is an integer number (210670551).

Almost surely, 2^421341101 is an apocalyptic number.

It is an amenable number.

421341101 is a deficient number, since it is larger than the sum of its proper divisors (1).

421341101 is an equidigital number, since it uses as much as digits as its factorization.

421341101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 421341101 is about 20526.5949684793. The cubic root of 421341101 is about 749.6834818479.

Adding to 421341101 its reverse (101143124), we get a palindrome (522484225).

The spelling of 421341101 in words is "four hundred twenty-one million, three hundred forty-one thousand, one hundred one".