21330111113 has 8 divisors (see below), whose sum is σ = 22833304800. Its totient is φ = 19864973088.

The previous prime is 21330111109. The next prime is 21330111203. The reversal of 21330111113 is 31111103312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21330111113 - 2² = 21330111109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21330111091 and 21330111100.

It is not an unprimeable number, because it can be changed into a prime (21330141113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9512756 + ... + 9514997.

It is an arithmetic number, because the mean of its divisors is an integer number (2854163100).

Almost surely, 2^21330111113 is an apocalyptic number.

It is an amenable number.

21330111113 is a deficient number, since it is larger than the sum of its proper divisors (1503193687).

21330111113 is a wasteful number, since it uses less digits than its factorization.

21330111113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19027831.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 21330111113 its reverse (31111103312), we get a palindrome (52441214425).

The spelling of 21330111113 in words is "twenty-one billion, three hundred thirty million, one hundred eleven thousand, one hundred thirteen".