421331241 has 4 divisors (see below), whose sum is σ = 561774992. Its totient is φ = 280887492.

The previous prime is 421331231. The next prime is 421331279. The reversal of 421331241 is 142133124.

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 421331241 - 2¹¹ = 421329193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421331201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70221871 + ... + 70221876.

It is an arithmetic number, because the mean of its divisors is an integer number (140443748).

Almost surely, 2^421331241 is an apocalyptic number.

It is an amenable number.

421331241 is a deficient number, since it is larger than the sum of its proper divisors (140443751).

421331241 is a wasteful number, since it uses less digits than its factorization.

421331241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140443750.

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

The square root of 421331241 is about 20526.3547908536. The cubic root of 421331241 is about 749.6776339044.

Adding to 421331241 its reverse (142133124), we get a palindrome (563464365).

The spelling of 421331241 in words is "four hundred twenty-one million, three hundred thirty-one thousand, two hundred forty-one".