21041143020303 has 48 divisors (see below), whose sum is σ = 33894518376960. Its totient is φ = 11568238316544.

The previous prime is 21041143020277. The next prime is 21041143020347. The reversal of 21041143020303 is 30302034114012.

It is a happy number.

It is not a de Polignac number, because 21041143020303 - 2⁸ = 21041143020047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21041143020353) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25401426 + ... + 26216687.

It is an arithmetic number, because the mean of its divisors is an integer number (706135799520).

Almost surely, 2^{21041143020303} is an apocalyptic number.

21041143020303 is a deficient number, since it is larger than the sum of its proper divisors (12853375356657).

21041143020303 is a wasteful number, since it uses less digits than its factorization.

21041143020303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51618236 (or 51618229 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21041143020303 its reverse (30302034114012), we get a palindrome (51343177134315).

The spelling of 21041143020303 in words is "twenty-one trillion, forty-one billion, one hundred forty-three million, twenty thousand, three hundred three".