11000020000001 has 2 divisors, whose sum is σ = 11000020000002. Its totient is φ = 11000020000000.

The previous prime is 11000019999953. The next prime is 11000020000031. The reversal of 11000020000001 is 10000002000011.

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., 10009636767601 + 990383232400 = 3163801^2 + 995180^2 .

It is an emirp because it is prime and its reverse (10000002000011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11000020000001 - 2¹⁰ = 11000019998977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11000020000001.

It is not a weakly prime, because it can be changed into another prime (11000020000031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500010000000 + 5500010000001.

It is an arithmetic number, because the mean of its divisors is an integer number (5500010000001).

Almost surely, 2^{11000020000001} is an apocalyptic number.

It is an amenable number.

11000020000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000020000001 is an equidigital number, since it uses as much as digits as its factorization.

11000020000001 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 11000020000001 its reverse (10000002000011), we get a palindrome (21000022000012).

The spelling of 11000020000001 in words is "eleven trillion, twenty million, one", and thus it is an aban number and an uban number.