2001320011 has 2 divisors, whose sum is σ = 2001320012. Its totient is φ = 2001320010.

The previous prime is 2001319997. The next prime is 2001320021. The reversal of 2001320011 is 1100231002.

It is an a-pointer prime, because the next prime (2001320021) can be obtained adding 2001320011 to its sum of digits (10).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001320011 - 2²⁷ = 1867102283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2001320011.

It is not a weakly prime, because it can be changed into another prime (2001320021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000660005 + 1000660006.

It is an arithmetic number, because the mean of its divisors is an integer number (1000660006).

Almost surely, 2^2001320011 is an apocalyptic number.

2001320011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001320011 is an equidigital number, since it uses as much as digits as its factorization.

2001320011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2001320011 is about 44736.1152873157. The cubic root of 2001320011 is about 1260.1981738769.

Adding to 2001320011 its reverse (1100231002), we get a palindrome (3101551013).

The spelling of 2001320011 in words is "two billion, one million, three hundred twenty thousand, eleven".