21041301105 has 48 divisors (see below), whose sum is σ = 40025591424. Its totient is φ = 10140714240.

The previous prime is 21041301097. The next prime is 21041301133. The reversal of 21041301105 is 50110314012.

It is not a de Polignac number, because 21041301105 - 2³ = 21041301097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44604 + ... + 209933.

It is an arithmetic number, because the mean of its divisors is an integer number (833866488).

Almost surely, 2^21041301105 is an apocalyptic number.

It is an amenable number.

21041301105 is a deficient number, since it is larger than the sum of its proper divisors (18984290319).

21041301105 is a wasteful number, since it uses less digits than its factorization.

21041301105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254726 (or 254723 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 21041301105 its reverse (50110314012), we get a palindrome (71151615117).

The spelling of 21041301105 in words is "twenty-one billion, forty-one million, three hundred one thousand, one hundred five".