21100310303 has 8 divisors (see below), whose sum is σ = 21836520480. Its totient is φ = 20364674400.

The previous prime is 21100310279. The next prime is 21100310311. The reversal of 21100310303 is 30301300112.

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 21100310303 - 2¹² = 21100306207 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 (21100310503) 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, 68123 + ... + 216428.

It is an arithmetic number, because the mean of its divisors is an integer number (2729565060).

Almost surely, 2^21100310303 is an apocalyptic number.

21100310303 is a deficient number, since it is larger than the sum of its proper divisors (736210177).

21100310303 is a wasteful number, since it uses less digits than its factorization.

21100310303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287137.

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

Adding to 21100310303 its reverse (30301300112), we get a palindrome (51401610415).

The spelling of 21100310303 in words is "twenty-one billion, one hundred million, three hundred ten thousand, three hundred three".