321143241 has 4 divisors (see below), whose sum is σ = 428190992. Its totient is φ = 214095492.

The previous prime is 321143219. The next prime is 321143257. The reversal of 321143241 is 142341123.

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 321143241 - 2⁷ = 321143113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321143341) 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, 53523871 + ... + 53523876.

It is an arithmetic number, because the mean of its divisors is an integer number (107047748).

Almost surely, 2^321143241 is an apocalyptic number.

It is an amenable number.

321143241 is a deficient number, since it is larger than the sum of its proper divisors (107047751).

321143241 is a wasteful number, since it uses less digits than its factorization.

321143241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107047750.

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

The square root of 321143241 is about 17920.4698878127. The cubic root of 321143241 is about 684.8039583207.

Adding to 321143241 its reverse (142341123), we get a palindrome (463484364).

The spelling of 321143241 in words is "three hundred twenty-one million, one hundred forty-three thousand, two hundred forty-one".