1331340334213 has 2 divisors, whose sum is σ = 1331340334214. Its totient is φ = 1331340334212.

The previous prime is 1331340334187. The next prime is 1331340334327. The reversal of 1331340334213 is 3124330431331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1178664149569 + 152676184644 = 1085663^2 + 390738^2 .

It is an emirp because it is prime and its reverse (3124330431331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331340334213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331340331213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665670167106 + 665670167107.

It is an arithmetic number, because the mean of its divisors is an integer number (665670167107).

Almost surely, 2^{1331340334213} is an apocalyptic number.

It is an amenable number.

1331340334213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331340334213 is an equidigital number, since it uses as much as digits as its factorization.

1331340334213 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 1331340334213 its reverse (3124330431331), we get a palindrome (4455670765544).

The spelling of 1331340334213 in words is "one trillion, three hundred thirty-one billion, three hundred forty million, three hundred thirty-four thousand, two hundred thirteen".