21330044113 has 8 divisors (see below), whose sum is σ = 24651095040. Its totient is φ = 18077468640.

The previous prime is 21330044111. The next prime is 21330044201. The reversal of 21330044113 is 31144003312.

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

It is not a de Polignac number, because 21330044113 - 2¹ = 21330044111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21330044111) 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, 17118193 + ... + 17119438.

It is an arithmetic number, because the mean of its divisors is an integer number (3081386880).

Almost surely, 2^21330044113 is an apocalyptic number.

It is an amenable number.

21330044113 is a deficient number, since it is larger than the sum of its proper divisors (3321050927).

21330044113 is an equidigital number, since it uses as much as digits as its factorization.

21330044113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34237727.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21330044113 its reverse (31144003312), we get a palindrome (52474047425).

The spelling of 21330044113 in words is "twenty-one billion, three hundred thirty million, forty-four thousand, one hundred thirteen".