331302241 has 2 divisors, whose sum is σ = 331302242. Its totient is φ = 331302240.

The previous prime is 331302217. The next prime is 331302269. The reversal of 331302241 is 142203133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220968225 + 110334016 = 14865^2 + 10504^2 .

It is an emirp because it is prime and its reverse (142203133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331302241 - 2¹³ = 331294049 is a prime.

It is a super-2 number, since 2×331302241² = 219522349783244162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (331302211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165651120 + 165651121.

It is an arithmetic number, because the mean of its divisors is an integer number (165651121).

Almost surely, 2^331302241 is an apocalyptic number.

It is an amenable number.

331302241 is a deficient number, since it is larger than the sum of its proper divisors (1).

331302241 is an equidigital number, since it uses as much as digits as its factorization.

331302241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 331302241 is about 18201.7098372653. The cubic root of 331302241 is about 691.9501235116.

Adding to 331302241 its reverse (142203133), we get a palindrome (473505374).

The spelling of 331302241 in words is "three hundred thirty-one million, three hundred two thousand, two hundred forty-one".