21500524351041 has 96 divisors (see below), whose sum is σ = 30667824875520. Its totient is φ = 13394120361600.

The previous prime is 21500524351039. The next prime is 21500524351051. The reversal of 21500524351041 is 14015342500512.

It is not a de Polignac number, because 21500524351041 - 2¹ = 21500524351039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21500524350993 and 21500524351011.

It is not an unprimeable number, because it can be changed into a prime (21500524351051) 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, 8203174711 + ... + 8203177331.

It is an arithmetic number, because the mean of its divisors is an integer number (319456509120).

Almost surely, 2^{21500524351041} is an apocalyptic number.

It is an amenable number.

21500524351041 is a deficient number, since it is larger than the sum of its proper divisors (9167300524479).

21500524351041 is a wasteful number, since it uses less digits than its factorization.

21500524351041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 21500524351041 its reverse (14015342500512), we get a palindrome (35515866851553).

The spelling of 21500524351041 in words is "twenty-one trillion, five hundred billion, five hundred twenty-four million, three hundred fifty-one thousand, forty-one".