21107907560241 has 20 divisors (see below), whose sum is σ = 32126500821492. Its totient is φ = 13806430099488.

The previous prime is 21107907560227. The next prime is 21107907560261. The reversal of 21107907560241 is 14206570970112.

21107907560241 is a `hidden beast` number, since 2 + 1 + 10 + 79 + 0 + 7 + 560 + 2 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17722752825600 + 3385154734641 = 4209840^2 + 1839879^2 .

It is not a de Polignac number, because 21107907560241 - 2⁹ = 21107907559729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21107907560261) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2458405626 + ... + 2458414211.

Almost surely, 2^{21107907560241} is an apocalyptic number.

It is an amenable number.

21107907560241 is a deficient number, since it is larger than the sum of its proper divisors (11018593261251).

21107907560241 is an equidigital number, since it uses as much as digits as its factorization.

21107907560241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4916819902 (or 4916819893 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 21107907560241 in words is "twenty-one trillion, one hundred seven billion, nine hundred seven million, five hundred sixty thousand, two hundred forty-one".