331130441 has 2 divisors, whose sum is σ = 331130442. Its totient is φ = 331130440.

The previous prime is 331130399. The next prime is 331130483. The reversal of 331130441 is 144031133.

It is a balanced prime because it is at equal distance from previous prime (331130399) and next prime (331130483).

It can be written as a sum of positive squares in only one way, i.e., 317588041 + 13542400 = 17821^2 + 3680^2 .

It is an emirp because it is prime and its reverse (144031133) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331130441 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (331133441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165565220 + 165565221.

It is an arithmetic number, because the mean of its divisors is an integer number (165565221).

Almost surely, 2^331130441 is an apocalyptic number.

It is an amenable number.

331130441 is a deficient number, since it is larger than the sum of its proper divisors (1).

331130441 is an equidigital number, since it uses as much as digits as its factorization.

331130441 is an odious number, because the sum of its binary digits is odd.

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

The square root of 331130441 is about 18196.9898884403. The cubic root of 331130441 is about 691.8304970087.

Adding to 331130441 its reverse (144031133), we get a palindrome (475161574).

The spelling of 331130441 in words is "three hundred thirty-one million, one hundred thirty thousand, four hundred forty-one".