21535020024141 has 192 divisors, whose sum is σ = 33789318635520. Its totient is φ = 12148998451200.

The previous prime is 21535020024137. The next prime is 21535020024157. The reversal of 21535020024141 is 14142002053512.

It is not a de Polignac number, because 21535020024141 - 2² = 21535020024137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21535020024099 and 21535020024108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21535020024121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 33491477166 + ... + 33491477808.

It is an arithmetic number, because the mean of its divisors is an integer number (175986034560).

Almost surely, 2^{21535020024141} is an apocalyptic number.

It is an amenable number.

21535020024141 is a deficient number, since it is larger than the sum of its proper divisors (12254298611379).

21535020024141 is a wasteful number, since it uses less digits than its factorization.

21535020024141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 21535020024141 its reverse (14142002053512), we get a palindrome (35677022077653).

The spelling of 21535020024141 in words is "twenty-one trillion, five hundred thirty-five billion, twenty million, twenty-four thousand, one hundred forty-one".