20000011001 has 2 divisors, whose sum is σ = 20000011002. Its totient is φ = 20000011000.

The previous prime is 20000010991. The next prime is 20000011007. The reversal of 20000011001 is 10011000002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17225250025 + 2774760976 = 131245^2 + 52676^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000011001 - 2¹⁰ = 20000009977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20000011007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000005500 + 10000005501.

It is an arithmetic number, because the mean of its divisors is an integer number (10000005501).

Almost surely, 2^20000011001 is an apocalyptic number.

It is an amenable number.

20000011001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000011001 is an equidigital number, since it uses as much as digits as its factorization.

20000011001 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20000011001 its reverse (10011000002), we get a palindrome (30011011003).

It can be divided in two parts, 2000001 and 1001, that added together give a palindrome (2001002).

The spelling of 20000011001 in words is "twenty billion, eleven thousand, one".