21040304224003 has 8 divisors (see below), whose sum is σ = 22016677344048. Its totient is φ = 20085389853984.

The previous prime is 21040304223997. The next prime is 21040304224061. The reversal of 21040304224003 is 30042240304012.

It is a happy number.

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

It is not a de Polignac number, because 21040304224003 - 2²⁹ = 21039767353091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21040304284003) 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, 5364685501 + ... + 5364689422.

It is an arithmetic number, because the mean of its divisors is an integer number (2752084668006).

Almost surely, 2^{21040304224003} is an apocalyptic number.

21040304224003 is a deficient number, since it is larger than the sum of its proper divisors (976373120045).

21040304224003 is a wasteful number, since it uses less digits than its factorization.

21040304224003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10729375013.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 21040304224003 its reverse (30042240304012), we get a palindrome (51082544528015).

The spelling of 21040304224003 in words is "twenty-one trillion, forty billion, three hundred four million, two hundred twenty-four thousand, three".