1331430333241 has 2 divisors, whose sum is σ = 1331430333242. Its totient is φ = 1331430333240.

The previous prime is 1331430333227. The next prime is 1331430333271. The reversal of 1331430333241 is 1423330341331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1272880368400 + 58549964841 = 1128220^2 + 241971^2 .

It is an emirp because it is prime and its reverse (1423330341331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1331430333241 - 2²⁹ = 1330893462329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331430333271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665715166620 + 665715166621.

It is an arithmetic number, because the mean of its divisors is an integer number (665715166621).

Almost surely, 2^{1331430333241} is an apocalyptic number.

It is an amenable number.

1331430333241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331430333241 is an equidigital number, since it uses as much as digits as its factorization.

1331430333241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 1331430333241 its reverse (1423330341331), we get a palindrome (2754760674572).

The spelling of 1331430333241 in words is "one trillion, three hundred thirty-one billion, four hundred thirty million, three hundred thirty-three thousand, two hundred forty-one".