420301231 has 4 divisors (see below), whose sum is σ = 480344272. Its totient is φ = 360258192.

The previous prime is 420301207. The next prime is 420301247. The reversal of 420301231 is 132103024.

It is a happy number.

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

It is not a de Polignac number, because 420301231 - 2¹¹ = 420299183 is a prime.

It is a super-2 number, since 2×420301231² = 353306249560230722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420301201) 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, 30021510 + ... + 30021523.

It is an arithmetic number, because the mean of its divisors is an integer number (120086068).

Almost surely, 2^420301231 is an apocalyptic number.

420301231 is a deficient number, since it is larger than the sum of its proper divisors (60043041).

420301231 is an equidigital number, since it uses as much as digits as its factorization.

420301231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60043040.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 420301231 is about 20501.2494985062. The cubic root of 420301231 is about 749.0662340722.

Adding to 420301231 its reverse (132103024), we get a palindrome (552404255).

The spelling of 420301231 in words is "four hundred twenty million, three hundred one thousand, two hundred thirty-one".