202013101202009 has 2 divisors, whose sum is σ = 202013101202010. Its totient is φ = 202013101202008.

The previous prime is 202013101201991. The next prime is 202013101202039. The reversal of 202013101202009 is 900202101310202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176991626592400 + 25021474609609 = 13303820^2 + 5002147^2 .

It is a cyclic number.

It is not a de Polignac number, because 202013101202009 - 2¹² = 202013101197913 is a prime.

It is not a weakly prime, because it can be changed into another prime (202013101202039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101006550601004 + 101006550601005.

It is an arithmetic number, because the mean of its divisors is an integer number (101006550601005).

Almost surely, 2^{202013101202009} is an apocalyptic number.

It is an amenable number.

202013101202009 is a deficient number, since it is larger than the sum of its proper divisors (1).

202013101202009 is an equidigital number, since it uses as much as digits as its factorization.

202013101202009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 202013101202009 in words is "two hundred two trillion, thirteen billion, one hundred one million, two hundred two thousand, nine".