421341231 has 4 divisors (see below), whose sum is σ = 561788312. Its totient is φ = 280894152.

The previous prime is 421341227. The next prime is 421341233. The reversal of 421341231 is 132143124.

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

It is not a de Polignac number, because 421341231 - 2² = 421341227 is a prime.

It is a super-2 number, since 2×421341231² = 355056865881190722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421341198 and 421341207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421341233) 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, 70223536 + ... + 70223541.

It is an arithmetic number, because the mean of its divisors is an integer number (140447078).

Almost surely, 2^421341231 is an apocalyptic number.

421341231 is a deficient number, since it is larger than the sum of its proper divisors (140447081).

421341231 is a wasteful number, since it uses less digits than its factorization.

421341231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140447080.

The product of its digits is 576, while the sum is 21.

The square root of 421341231 is about 20526.5981351027. The cubic root of 421341231 is about 749.6835589500.

Adding to 421341231 its reverse (132143124), we get a palindrome (553484355).

It can be divided in two parts, 42134 and 1231, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 421341231 in words is "four hundred twenty-one million, three hundred forty-one thousand, two hundred thirty-one".