201020120011 has 2 divisors, whose sum is σ = 201020120012. Its totient is φ = 201020120010.

The previous prime is 201020119961. The next prime is 201020120017. The reversal of 201020120011 is 110021020102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201020120011 - 2¹⁵ = 201020087243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201020120011.

It is not a weakly prime, because it can be changed into another prime (201020120017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510060005 + 100510060006.

It is an arithmetic number, because the mean of its divisors is an integer number (100510060006).

Almost surely, 2^201020120011 is an apocalyptic number.

201020120011 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020120011 is an equidigital number, since it uses as much as digits as its factorization.

201020120011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 201020120011 its reverse (110021020102), we get a palindrome (311041140113).

Subtracting from 201020120011 its reverse (110021020102), we obtain a palindrome (90999099909).

The spelling of 201020120011 in words is "two hundred one billion, twenty million, one hundred twenty thousand, eleven".