1331344032443 has 2 divisors, whose sum is σ = 1331344032444. Its totient is φ = 1331344032442.

The previous prime is 1331344032391. The next prime is 1331344032493. The reversal of 1331344032443 is 3442304431331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331344032443 - 2¹⁰ = 1331344031419 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331344032493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665672016221 + 665672016222.

It is an arithmetic number, because the mean of its divisors is an integer number (665672016222).

Almost surely, 2^{1331344032443} is an apocalyptic number.

1331344032443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331344032443 is an equidigital number, since it uses as much as digits as its factorization.

1331344032443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 1331344032443 its reverse (3442304431331), we get a palindrome (4773648463774).

The spelling of 1331344032443 in words is "one trillion, three hundred thirty-one billion, three hundred forty-four million, thirty-two thousand, four hundred forty-three".