1321331013341 has 2 divisors, whose sum is σ = 1321331013342. Its totient is φ = 1321331013340.

The previous prime is 1321331013323. The next prime is 1321331013367. The reversal of 1321331013341 is 1433101331231.

It is a happy number.

It is an a-pointer prime, because the next prime (1321331013367) can be obtained adding 1321331013341 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1321223808025 + 107205316 = 1149445^2 + 10354^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321331013341 - 2¹⁰ = 1321331012317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321331013341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321331013311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660665506670 + 660665506671.

It is an arithmetic number, because the mean of its divisors is an integer number (660665506671).

Almost surely, 2^{1321331013341} is an apocalyptic number.

It is an amenable number.

1321331013341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321331013341 is an equidigital number, since it uses as much as digits as its factorization.

1321331013341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 1321331013341 its reverse (1433101331231), we get a palindrome (2754432344572).

The spelling of 1321331013341 in words is "one trillion, three hundred twenty-one billion, three hundred thirty-one million, thirteen thousand, three hundred forty-one".