21001001110711 has 2 divisors, whose sum is σ = 21001001110712. Its totient is φ = 21001001110710.

The previous prime is 21001001110703. The next prime is 21001001110741. The reversal of 21001001110711 is 11701110010012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21001001110711 - 2³ = 21001001110703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21001001110741) 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, 10500500555355 + 10500500555356.

It is an arithmetic number, because the mean of its divisors is an integer number (10500500555356).

Almost surely, 2^{21001001110711} is an apocalyptic number.

21001001110711 is a deficient number, since it is larger than the sum of its proper divisors (1).

21001001110711 is an equidigital number, since it uses as much as digits as its factorization.

21001001110711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 16.

Adding to 21001001110711 its reverse (11701110010012), we get a palindrome (32702111120723).

The spelling of 21001001110711 in words is "twenty-one trillion, one billion, one million, one hundred ten thousand, seven hundred eleven".