20010000011 has 2 divisors, whose sum is σ = 20010000012. Its totient is φ = 20010000010.

The previous prime is 20009999993. The next prime is 20010000013. The reversal of 20010000011 is 11000001002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010000011 is a prime.

Together with 20010000013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20010000013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005000005 + 10005000006.

It is an arithmetic number, because the mean of its divisors is an integer number (10005000006).

Almost surely, 2^20010000011 is an apocalyptic number.

20010000011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010000011 is an equidigital number, since it uses as much as digits as its factorization.

20010000011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 20010000011 its reverse (11000001002), we get a palindrome (31010001013).

Subtracting from 20010000011 its reverse (11000001002), we obtain a palindrome (9009999009).

The spelling of 20010000011 in words is "twenty billion, ten million, eleven", and thus it is an aban number and an uban number.