21100133330303 has 8 divisors (see below), whose sum is σ = 21493528731168. Its totient is φ = 20710363693824.

The previous prime is 21100133330219. The next prime is 21100133330317. The reversal of 21100133330303 is 30303333100112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21100133330303 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 (21100133330803) 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, 906429350 + ... + 906452627.

It is an arithmetic number, because the mean of its divisors is an integer number (2686691091396).

Almost surely, 2^{21100133330303} is an apocalyptic number.

21100133330303 is a deficient number, since it is larger than the sum of its proper divisors (393395400865).

21100133330303 is a wasteful number, since it uses less digits than its factorization.

21100133330303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812882193.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 21100133330303 its reverse (30303333100112), we get a palindrome (51403466430415).

The spelling of 21100133330303 in words is "twenty-one trillion, one hundred billion, one hundred thirty-three million, three hundred thirty thousand, three hundred three".