21021130333303 has 8 divisors (see below), whose sum is σ = 21196393802640. Its totient is φ = 20846210183040.

The previous prime is 21021130333277. The next prime is 21021130333321. The reversal of 21021130333303 is 30333303112012.

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 21021130333303 - 2⁵ = 21021130333271 is a prime.

It is a super-2 number, since 2×21021130333303² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21021130333103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85706800 + ... + 85951717.

It is an arithmetic number, because the mean of its divisors is an integer number (2649549225330).

Almost surely, 2^{21021130333303} is an apocalyptic number.

21021130333303 is a deficient number, since it is larger than the sum of its proper divisors (175263469337).

21021130333303 is a wasteful number, since it uses less digits than its factorization.

21021130333303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171659537.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 21021130333303 its reverse (30333303112012), we get a palindrome (51354433445315).

The spelling of 21021130333303 in words is "twenty-one trillion, twenty-one billion, one hundred thirty million, three hundred thirty-three thousand, three hundred three".