20006110109 has 2 divisors, whose sum is σ = 20006110110. Its totient is φ = 20006110108.

The previous prime is 20006110087. The next prime is 20006110141. The reversal of 20006110109 is 90101160002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11404104100 + 8602006009 = 106790^2 + 92747^2 .

It is a cyclic number.

It is not a de Polignac number, because 20006110109 - 2³² = 15711142813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20006110169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10003055054 + 10003055055.

It is an arithmetic number, because the mean of its divisors is an integer number (10003055055).

Almost surely, 2^20006110109 is an apocalyptic number.

It is an amenable number.

20006110109 is a deficient number, since it is larger than the sum of its proper divisors (1).

20006110109 is an equidigital number, since it uses as much as digits as its factorization.

20006110109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 20006110109 in words is "twenty billion, six million, one hundred ten thousand, one hundred nine".