420101423 has 4 divisors (see below), whose sum is σ = 480115920. Its totient is φ = 360086928.

The previous prime is 420101389. The next prime is 420101459. The reversal of 420101423 is 324101024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420101423 - 2¹⁰ = 420100399 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 (420101483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30007238 + ... + 30007251.

It is an arithmetic number, because the mean of its divisors is an integer number (120028980).

Almost surely, 2^420101423 is an apocalyptic number.

420101423 is a deficient number, since it is larger than the sum of its proper divisors (60014497).

420101423 is an equidigital number, since it uses as much as digits as its factorization.

420101423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60014496.

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

The square root of 420101423 is about 20496.3758503790. The cubic root of 420101423 is about 748.9475151324.

Adding to 420101423 its reverse (324101024), we get a palindrome (744202447).

The spelling of 420101423 in words is "four hundred twenty million, one hundred one thousand, four hundred twenty-three".