21441103345 has 8 divisors (see below), whose sum is σ = 26559302400. Its totient is φ = 16599563760.

The previous prime is 21441103331. The next prime is 21441103351. The reversal of 21441103345 is 54330114412.

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

It is not a de Polignac number, because 21441103345 - 2⁹ = 21441102833 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69164695 + ... + 69165004.

It is an arithmetic number, because the mean of its divisors is an integer number (3319912800).

Almost surely, 2^21441103345 is an apocalyptic number.

It is an amenable number.

21441103345 is a deficient number, since it is larger than the sum of its proper divisors (5118199055).

21441103345 is a wasteful number, since it uses less digits than its factorization.

21441103345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138329735.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 21441103345 its reverse (54330114412), we get a palindrome (75771217757).

The spelling of 21441103345 in words is "twenty-one billion, four hundred forty-one million, one hundred three thousand, three hundred forty-five".