1361036012209 has 2 divisors, whose sum is σ = 1361036012210. Its totient is φ = 1361036012208.

The previous prime is 1361036012191. The next prime is 1361036012261. The reversal of 1361036012209 is 9022106301631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 774218730609 + 586817281600 = 879897^2 + 766040^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361036012209 - 2¹³ = 1361036004017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1361036012309) 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, 680518006104 + 680518006105.

It is an arithmetic number, because the mean of its divisors is an integer number (680518006105).

Almost surely, 2^{1361036012209} is an apocalyptic number.

It is an amenable number.

1361036012209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361036012209 is an equidigital number, since it uses as much as digits as its factorization.

1361036012209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 1361036012209 in words is "one trillion, three hundred sixty-one billion, thirty-six million, twelve thousand, two hundred nine".