21010303031333 has 36 divisors (see below), whose sum is σ = 27613523182752. Its totient is φ = 15807124196640.

The previous prime is 21010303031231. The next prime is 21010303031387. The reversal of 21010303031333 is 33313030301012.

It is not a de Polignac number, because 21010303031333 - 2¹⁰ = 21010303030309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21010303031299 and 21010303031308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010303039333) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22721585 + ... + 23628182.

It is an arithmetic number, because the mean of its divisors is an integer number (767042310632).

Almost surely, 2^{21010303031333} is an apocalyptic number.

It is an amenable number.

21010303031333 is a deficient number, since it is larger than the sum of its proper divisors (6603220151419).

21010303031333 is a wasteful number, since it uses less digits than its factorization.

21010303031333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46349850 (or 46349814 counting only the distinct ones).

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

Adding to 21010303031333 its reverse (33313030301012), we get a palindrome (54323333332345).

The spelling of 21010303031333 in words is "twenty-one trillion, ten billion, three hundred three million, thirty-one thousand, three hundred thirty-three".