21003001200011 has 2 divisors, whose sum is σ = 21003001200012. Its totient is φ = 21003001200010.

The previous prime is 21003001199993. The next prime is 21003001200047. The reversal of 21003001200011 is 11000210030012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21003001200011 - 2¹⁴ = 21003001183627 is a prime.

It is a super-2 number, since 2×21003001200011² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21003001199965 and 21003001200001.

It is not a weakly prime, because it can be changed into another prime (21003001200611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501500600005 + 10501500600006.

It is an arithmetic number, because the mean of its divisors is an integer number (10501500600006).

Almost surely, 2^{21003001200011} is an apocalyptic number.

21003001200011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21003001200011 is an equidigital number, since it uses as much as digits as its factorization.

21003001200011 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 11.

Adding to 21003001200011 its reverse (11000210030012), we get a palindrome (32003211230023).

The spelling of 21003001200011 in words is "twenty-one trillion, three billion, one million, two hundred thousand, eleven".