21530602235241 has 96 divisors (see below), whose sum is σ = 34658311618944. Its totient is φ = 12769840512000.

The previous prime is 21530602235221. The next prime is 21530602235267. The reversal of 21530602235241 is 14253220603512.

21530602235241 is a `hidden beast` number, since 2 + 1 + 5 + 3 + 0 + 602 + 2 + 3 + 5 + 2 + 41 = 666.

It is not a de Polignac number, because 21530602235241 - 2²³ = 21530593846633 is a prime.

It is a super-2 number, since 2×21530602235241² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21530602235196 and 21530602235205.

It is not an unprimeable number, because it can be changed into a prime (21530602235221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2044492146 + ... + 2044502676.

It is an arithmetic number, because the mean of its divisors is an integer number (361024079364).

Almost surely, 2^{21530602235241} is an apocalyptic number.

It is an amenable number.

21530602235241 is a deficient number, since it is larger than the sum of its proper divisors (13127709383703).

21530602235241 is a wasteful number, since it uses less digits than its factorization.

21530602235241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12295 (or 12292 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 21530602235241 its reverse (14253220603512), we get a palindrome (35783822838753).

The spelling of 21530602235241 in words is "twenty-one trillion, five hundred thirty billion, six hundred two million, two hundred thirty-five thousand, two hundred forty-one".