331221341 has 8 divisors (see below), whose sum is σ = 365058624. Its totient is φ = 298005120.

The previous prime is 331221337. The next prime is 331221347. The reversal of 331221341 is 143122133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331221341 - 2² = 331221337 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 (331221347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154145 + ... + 156278.

It is an arithmetic number, because the mean of its divisors is an integer number (45632328).

Almost surely, 2^331221341 is an apocalyptic number.

It is an amenable number.

331221341 is a deficient number, since it is larger than the sum of its proper divisors (33837283).

331221341 is a wasteful number, since it uses less digits than its factorization.

331221341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310531.

The product of its digits is 432, while the sum is 20.

The square root of 331221341 is about 18199.4873828908. The cubic root of 331221341 is about 691.8937969763.

Adding to 331221341 its reverse (143122133), we get a palindrome (474343474).

The spelling of 331221341 in words is "three hundred thirty-one million, two hundred twenty-one thousand, three hundred forty-one".