21441023124135 has 64 divisors (see below), whose sum is σ = 34946728750080. Its totient is φ = 11223027200000.

The previous prime is 21441023124023. The next prime is 21441023124139. The reversal of 21441023124135 is 53142132014412.

It is not a de Polignac number, because 21441023124135 - 2⁸ = 21441023123879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21441023124096 and 21441023124105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441023124139) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 504936805 + ... + 504979265.

It is an arithmetic number, because the mean of its divisors is an integer number (546042636720).

Almost surely, 2^{21441023124135} is an apocalyptic number.

21441023124135 is a deficient number, since it is larger than the sum of its proper divisors (13505705625945).

21441023124135 is a wasteful number, since it uses less digits than its factorization.

21441023124135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44680.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 21441023124135 its reverse (53142132014412), we get a palindrome (74583155138547).

The spelling of 21441023124135 in words is "twenty-one trillion, four hundred forty-one billion, twenty-three million, one hundred twenty-four thousand, one hundred thirty-five".