21112068883 has 4 divisors (see below), whose sum is σ = 21119701600. Its totient is φ = 21104436168.

The previous prime is 21112068881. The next prime is 21112068889. The reversal of 21112068883 is 38886021112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21112068883 - 2¹ = 21112068881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21112068881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3812208 + ... + 3817741.

It is an arithmetic number, because the mean of its divisors is an integer number (5279925400).

Almost surely, 2^21112068883 is an apocalyptic number.

21112068883 is a deficient number, since it is larger than the sum of its proper divisors (7632717).

21112068883 is an equidigital number, since it uses as much as digits as its factorization.

21112068883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7632716.

The product of its (nonzero) digits is 36864, while the sum is 40.

Adding to 21112068883 its reverse (38886021112), we get a palindrome (59998089995).

The spelling of 21112068883 in words is "twenty-one billion, one hundred twelve million, sixty-eight thousand, eight hundred eighty-three".