1320243122441 has 2 divisors, whose sum is σ = 1320243122442. Its totient is φ = 1320243122440.

The previous prime is 1320243122437. The next prime is 1320243122503. The reversal of 1320243122441 is 1442213420231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1030184400400 + 290058722041 = 1014980^2 + 538571^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320243122441 - 2² = 1320243122437 is a prime.

It is a super-2 number, since 2×1320243122441² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1320243124441) 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, 660121561220 + 660121561221.

It is an arithmetic number, because the mean of its divisors is an integer number (660121561221).

Almost surely, 2^{1320243122441} is an apocalyptic number.

It is an amenable number.

1320243122441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320243122441 is an equidigital number, since it uses as much as digits as its factorization.

1320243122441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1320243122441 its reverse (1442213420231), we get a palindrome (2762456542672).

The spelling of 1320243122441 in words is "one trillion, three hundred twenty billion, two hundred forty-three million, one hundred twenty-two thousand, four hundred forty-one".