1331323125347 has 2 divisors, whose sum is σ = 1331323125348. Its totient is φ = 1331323125346.

The previous prime is 1331323125337. The next prime is 1331323125361. The reversal of 1331323125347 is 7435213231331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1331323125347 - 2¹² = 1331323121251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1331323125347.

It is not a weakly prime, because it can be changed into another prime (1331323125337) 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, 665661562673 + 665661562674.

It is an arithmetic number, because the mean of its divisors is an integer number (665661562674).

Almost surely, 2^{1331323125347} is an apocalyptic number.

1331323125347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331323125347 is an equidigital number, since it uses as much as digits as its factorization.

1331323125347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 38.

Adding to 1331323125347 its reverse (7435213231331), we get a palindrome (8766536356678).

The spelling of 1331323125347 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-three million, one hundred twenty-five thousand, three hundred forty-seven".