20201233301209 has 2 divisors, whose sum is σ = 20201233301210. Its totient is φ = 20201233301208.

The previous prime is 20201233301009. The next prime is 20201233301231. The reversal of 20201233301209 is 90210333210202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19924974787600 + 276258513609 = 4463740^2 + 525603^2 .

It is a cyclic number.

It is not a de Polignac number, because 20201233301209 - 2³⁵ = 20166873562841 is a prime.

It is not a weakly prime, because it can be changed into another prime (20201233301239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100616650604 + 10100616650605.

It is an arithmetic number, because the mean of its divisors is an integer number (10100616650605).

Almost surely, 2^{20201233301209} is an apocalyptic number.

It is an amenable number.

20201233301209 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201233301209 is an equidigital number, since it uses as much as digits as its factorization.

20201233301209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 20201233301209 in words is "twenty trillion, two hundred one billion, two hundred thirty-three million, three hundred one thousand, two hundred nine".