1311033320941 has 2 divisors, whose sum is σ = 1311033320942. Its totient is φ = 1311033320940.

The previous prime is 1311033320923. The next prime is 1311033320977. The reversal of 1311033320941 is 1490233301131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1066820436900 + 244212884041 = 1032870^2 + 494179^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311033320941 - 2¹⁹ = 1311032796653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311033320041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655516660470 + 655516660471.

It is an arithmetic number, because the mean of its divisors is an integer number (655516660471).

Almost surely, 2^{1311033320941} is an apocalyptic number.

It is an amenable number.

1311033320941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311033320941 is an equidigital number, since it uses as much as digits as its factorization.

1311033320941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 1311033320941 in words is "one trillion, three hundred eleven billion, thirty-three million, three hundred twenty thousand, nine hundred forty-one".