331102241 has 2 divisors, whose sum is σ = 331102242. Its totient is φ = 331102240.

The previous prime is 331102229. The next prime is 331102243. The reversal of 331102241 is 142201133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293402641 + 37699600 = 17129^2 + 6140^2 .

It is an emirp because it is prime and its reverse (142201133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331102241 - 2¹⁰ = 331101217 is a prime.

Together with 331102243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (331102243) 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 as a sum of consecutive naturals, namely, 165551120 + 165551121.

It is an arithmetic number, because the mean of its divisors is an integer number (165551121).

Almost surely, 2^331102241 is an apocalyptic number.

It is an amenable number.

331102241 is a deficient number, since it is larger than the sum of its proper divisors (1).

331102241 is an equidigital number, since it uses as much as digits as its factorization.

331102241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 331102241 is about 18196.2150185142. The cubic root of 331102241 is about 691.8108570407.

Adding to 331102241 its reverse (142201133), we get a palindrome (473303374).

The spelling of 331102241 in words is "three hundred thirty-one million, one hundred two thousand, two hundred forty-one".