21040304224034 has 8 divisors (see below), whose sum is σ = 31568897228880. Its totient is φ = 10517338481076.

The previous prime is 21040304223997. The next prime is 21040304224061. The reversal of 21040304224034 is 43042240304012.

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

It is a junction number, because it is equal to n+sod(n) for n = 21040304223988 and 21040304224006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406806124 + ... + 1406821079.

It is an arithmetic number, because the mean of its divisors is an integer number (3946112153610).

Almost surely, 2^{21040304224034} is an apocalyptic number.

21040304224034 is a deficient number, since it is larger than the sum of its proper divisors (10528593004846).

21040304224034 is a wasteful number, since it uses less digits than its factorization.

21040304224034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813630944.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 21040304224034 its reverse (43042240304012), we get a palindrome (64082544528046).

The spelling of 21040304224034 in words is "twenty-one trillion, forty billion, three hundred four million, two hundred twenty-four thousand, thirty-four".