21024134113 has 2 divisors, whose sum is σ = 21024134114. Its totient is φ = 21024134112.

The previous prime is 21024134081. The next prime is 21024134129. The reversal of 21024134113 is 31143142012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18492736144 + 2531397969 = 135988^2 + 50313^2 .

It is a cyclic number.

It is not a de Polignac number, because 21024134113 - 2⁵ = 21024134081 is a prime.

It is not a weakly prime, because it can be changed into another prime (21024174113) 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, 10512067056 + 10512067057.

It is an arithmetic number, because the mean of its divisors is an integer number (10512067057).

Almost surely, 2^21024134113 is an apocalyptic number.

It is an amenable number.

21024134113 is a deficient number, since it is larger than the sum of its proper divisors (1).

21024134113 is an equidigital number, since it uses as much as digits as its factorization.

21024134113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21024134113 its reverse (31143142012), we get a palindrome (52167276125).

The spelling of 21024134113 in words is "twenty-one billion, twenty-four million, one hundred thirty-four thousand, one hundred thirteen".