2011011002009 has 2 divisors, whose sum is σ = 2011011002010. Its totient is φ = 2011011002008.

The previous prime is 2011011001999. The next prime is 2011011002041. The reversal of 2011011002009 is 9002001101102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1191754305625 + 819256696384 = 1091675^2 + 905128^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011011002009 - 2¹² = 2011010997913 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011011002069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005505501004 + 1005505501005.

It is an arithmetic number, because the mean of its divisors is an integer number (1005505501005).

Almost surely, 2^{2011011002009} is an apocalyptic number.

It is an amenable number.

2011011002009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011011002009 is an equidigital number, since it uses as much as digits as its factorization.

2011011002009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 2011011002009 in words is "two trillion, eleven billion, eleven million, two thousand, nine".