21001110883 has 2 divisors, whose sum is σ = 21001110884. Its totient is φ = 21001110882.

The previous prime is 21001110869. The next prime is 21001110887. The reversal of 21001110883 is 38801110012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21001110883 - 2²⁵ = 20967556451 is a prime.

It is a super-2 number, since 2×21001110883² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21001110887) 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, 10500555441 + 10500555442.

It is an arithmetic number, because the mean of its divisors is an integer number (10500555442).

Almost surely, 2^21001110883 is an apocalyptic number.

21001110883 is a deficient number, since it is larger than the sum of its proper divisors (1).

21001110883 is an equidigital number, since it uses as much as digits as its factorization.

21001110883 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 25.

Adding to 21001110883 its reverse (38801110012), we get a palindrome (59802220895).

The spelling of 21001110883 in words is "twenty-one billion, one million, one hundred ten thousand, eight hundred eighty-three".