2102303201209 has 2 divisors, whose sum is σ = 2102303201210. Its totient is φ = 2102303201208.

The previous prime is 2102303200981. The next prime is 2102303201221. The reversal of 2102303201209 is 9021023032012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1083358314025 + 1018944887184 = 1040845^2 + 1009428^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102303201209 - 2¹⁷ = 2102303070137 is a prime.

It is not a weakly prime, because it can be changed into another prime (2102303208209) 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, 1051151600604 + 1051151600605.

It is an arithmetic number, because the mean of its divisors is an integer number (1051151600605).

Almost surely, 2^{2102303201209} is an apocalyptic number.

It is an amenable number.

2102303201209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102303201209 is an equidigital number, since it uses as much as digits as its factorization.

2102303201209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 2102303201209 in words is "two trillion, one hundred two billion, three hundred three million, two hundred one thousand, two hundred nine".