21044214003 has 8 divisors (see below), whose sum is σ = 28964079616. Its totient is φ = 13576912200.

The previous prime is 21044213969. The next prime is 21044214007. The reversal of 21044214003 is 30041244012.

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

It is not a de Polignac number, because 21044214003 - 2¹⁰ = 21044212979 is a prime.

It is a super-3 number, since 3×21044214003³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21044214007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113140843 + ... + 113141028.

It is an arithmetic number, because the mean of its divisors is an integer number (3620509952).

Almost surely, 2^21044214003 is an apocalyptic number.

21044214003 is a deficient number, since it is larger than the sum of its proper divisors (7919865613).

21044214003 is a wasteful number, since it uses less digits than its factorization.

21044214003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226281905.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21044214003 its reverse (30041244012), we get a palindrome (51085458015).

The spelling of 21044214003 in words is "twenty-one billion, forty-four million, two hundred fourteen thousand, three".