202008001009 has 2 divisors, whose sum is σ = 202008001010. Its totient is φ = 202008001008.

The previous prime is 202008000977. The next prime is 202008001049. The reversal of 202008001009 is 900100800202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143165370384 + 58842630625 = 378372^2 + 242575^2 .

It is a cyclic number.

It is not a de Polignac number, because 202008001009 - 2⁵ = 202008000977 is a prime.

It is not a weakly prime, because it can be changed into another prime (202008001049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101004000504 + 101004000505.

It is an arithmetic number, because the mean of its divisors is an integer number (101004000505).

Almost surely, 2^202008001009 is an apocalyptic number.

It is an amenable number.

202008001009 is a deficient number, since it is larger than the sum of its proper divisors (1).

202008001009 is an equidigital number, since it uses as much as digits as its factorization.

202008001009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 202008001009 in words is "two hundred two billion, eight million, one thousand, nine".