1321441032313 has 2 divisors, whose sum is σ = 1321441032314. Its totient is φ = 1321441032312.

The previous prime is 1321441032299. The next prime is 1321441032349. The reversal of 1321441032313 is 3132301441231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1309578119424 + 11862912889 = 1144368^2 + 108917^2 .

It is an emirp because it is prime and its reverse (3132301441231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321441032313 is a prime.

It is a super-2 number, since 2×1321441032313² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1321441032383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660720516156 + 660720516157.

It is an arithmetic number, because the mean of its divisors is an integer number (660720516157).

Almost surely, 2^{1321441032313} is an apocalyptic number.

It is an amenable number.

1321441032313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321441032313 is an equidigital number, since it uses as much as digits as its factorization.

1321441032313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1321441032313 its reverse (3132301441231), we get a palindrome (4453742473544).

The spelling of 1321441032313 in words is "one trillion, three hundred twenty-one billion, four hundred forty-one million, thirty-two thousand, three hundred thirteen".