30202102001809 has 2 divisors, whose sum is σ = 30202102001810. Its totient is φ = 30202102001808.

The previous prime is 30202102001801. The next prime is 30202102001833. The reversal of 30202102001809 is 90810020120203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29313258445584 + 888843556225 = 5414172^2 + 942785^2 .

It is a cyclic number.

It is not a de Polignac number, because 30202102001809 - 2³ = 30202102001801 is a prime.

It is not a weakly prime, because it can be changed into another prime (30202102001801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101051000904 + 15101051000905.

It is an arithmetic number, because the mean of its divisors is an integer number (15101051000905).

Almost surely, 2^{30202102001809} is an apocalyptic number.

It is an amenable number.

30202102001809 is a deficient number, since it is larger than the sum of its proper divisors (1).

30202102001809 is an equidigital number, since it uses as much as digits as its factorization.

30202102001809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 30202102001809 in words is "thirty trillion, two hundred two billion, one hundred two million, one thousand, eight hundred nine".