21065443341324 has 24 divisors (see below), whose sum is σ = 49152979375920. Its totient is φ = 7021774697664.

The previous prime is 21065443341251. The next prime is 21065443341347. The reversal of 21065443341324 is 42314334456012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2719819 + ... + 7037634.

It is an arithmetic number, because the mean of its divisors is an integer number (2048040807330).

Almost surely, 2^{21065443341324} is an apocalyptic number.

It is an amenable number.

21065443341324 is an abundant number, since it is smaller than the sum of its proper divisors (28087536034596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21065443341324 is a wasteful number, since it uses less digits than its factorization.

21065443341324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9937369 (or 9937367 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 21065443341324 its reverse (42314334456012), we get a palindrome (63379777797336).

The spelling of 21065443341324 in words is "twenty-one trillion, sixty-five billion, four hundred forty-three million, three hundred forty-one thousand, three hundred twenty-four".