20011013033009 has 2 divisors, whose sum is σ = 20011013033010. Its totient is φ = 20011013033008.

The previous prime is 20011013033003. The next prime is 20011013033029. The reversal of 20011013033009 is 90033031011002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15591663082384 + 4419349950625 = 3948628^2 + 2102225^2 .

It is a cyclic number.

It is not a de Polignac number, because 20011013033009 - 2⁸ = 20011013032753 is a prime.

It is not a weakly prime, because it can be changed into another prime (20011013033003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005506516504 + 10005506516505.

It is an arithmetic number, because the mean of its divisors is an integer number (10005506516505).

Almost surely, 2^{20011013033009} is an apocalyptic number.

It is an amenable number.

20011013033009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011013033009 is an equidigital number, since it uses as much as digits as its factorization.

20011013033009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

The spelling of 20011013033009 in words is "twenty trillion, eleven billion, thirteen million, thirty-three thousand, nine".