21024101011 has 2 divisors, whose sum is σ = 21024101012. Its totient is φ = 21024101010.

The previous prime is 21024100987. The next prime is 21024101047. The reversal of 21024101011 is 11010142012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21024101011 - 2¹⁵ = 21024068243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21024100982 and 21024101000.

It is not a weakly prime, because it can be changed into another prime (21024101311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10512050505 + 10512050506.

It is an arithmetic number, because the mean of its divisors is an integer number (10512050506).

Almost surely, 2^21024101011 is an apocalyptic number.

21024101011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21024101011 is an equidigital number, since it uses as much as digits as its factorization.

21024101011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21024101011 its reverse (11010142012), we get a palindrome (32034243023).

The spelling of 21024101011 in words is "twenty-one billion, twenty-four million, one hundred one thousand, eleven".