421143341 has 4 divisors (see below), whose sum is σ = 443308800. Its totient is φ = 398977884.

The previous prime is 421143319. The next prime is 421143347. The reversal of 421143341 is 143341124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 421143341 - 2¹⁰ = 421142317 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 (421143347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11082701 + ... + 11082738.

It is an arithmetic number, because the mean of its divisors is an integer number (110827200).

Almost surely, 2^421143341 is an apocalyptic number.

It is an amenable number.

421143341 is a deficient number, since it is larger than the sum of its proper divisors (22165459).

421143341 is a wasteful number, since it uses less digits than its factorization.

421143341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22165458.

The product of its digits is 1152, while the sum is 23.

The square root of 421143341 is about 20521.7772378515. Note that the first 3 decimals coincide. The cubic root of 421143341 is about 749.5661734040.

Adding to 421143341 its reverse (143341124), we get a palindrome (564484465).

The spelling of 421143341 in words is "four hundred twenty-one million, one hundred forty-three thousand, three hundred forty-one".