21114042421163 has 2 divisors, whose sum is σ = 21114042421164. Its totient is φ = 21114042421162.

The previous prime is 21114042421159. The next prime is 21114042421249. The reversal of 21114042421163 is 36112424041112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21114042421163 - 2² = 21114042421159 is a prime.

It is not a weakly prime, because it can be changed into another prime (21114042421763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10557021210581 + 10557021210582.

It is an arithmetic number, because the mean of its divisors is an integer number (10557021210582).

Almost surely, 2^{21114042421163} is an apocalyptic number.

21114042421163 is a deficient number, since it is larger than the sum of its proper divisors (1).

21114042421163 is an equidigital number, since it uses as much as digits as its factorization.

21114042421163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 21114042421163 its reverse (36112424041112), we get a palindrome (57226466462275).

The spelling of 21114042421163 in words is "twenty-one trillion, one hundred fourteen billion, forty-two million, four hundred twenty-one thousand, one hundred sixty-three".