21330003101 has 16 divisors (see below), whose sum is σ = 23412025728. Its totient is φ = 19271937600.

The previous prime is 21330003089. The next prime is 21330003103. The reversal of 21330003101 is 10130003312.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21330003101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330003103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5885576 + ... + 5889198.

It is an arithmetic number, because the mean of its divisors is an integer number (1463251608).

Almost surely, 2^21330003101 is an apocalyptic number.

It is an amenable number.

21330003101 is a deficient number, since it is larger than the sum of its proper divisors (2082022627).

21330003101 is a wasteful number, since it uses less digits than its factorization.

21330003101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6772.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 21330003101 its reverse (10130003312), we get a palindrome (31460006413).

The spelling of 21330003101 in words is "twenty-one billion, three hundred thirty million, three thousand, one hundred one".