1045211135209 has 2 divisors, whose sum is σ = 1045211135210. Its totient is φ = 1045211135208.

The previous prime is 1045211135191. The next prime is 1045211135219. The reversal of 1045211135209 is 9025311125401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 969443067609 + 75768067600 = 984603^2 + 275260^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045211135209 - 2⁹ = 1045211134697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1045211135219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522605567604 + 522605567605.

It is an arithmetic number, because the mean of its divisors is an integer number (522605567605).

Almost surely, 2^{1045211135209} is an apocalyptic number.

It is an amenable number.

1045211135209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045211135209 is an equidigital number, since it uses as much as digits as its factorization.

1045211135209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 1045211135209 in words is "one trillion, forty-five billion, two hundred eleven million, one hundred thirty-five thousand, two hundred nine".