21134342053024 has 96 divisors (see below), whose sum is σ = 44393106240000. Its totient is φ = 9881059448832.

The previous prime is 21134342053007. The next prime is 21134342053057. The reversal of 21134342053024 is 42035024343112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29148852 + ... + 29865100.

It is an arithmetic number, because the mean of its divisors is an integer number (462428190000).

Almost surely, 2^{21134342053024} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21134342053024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22196553120000).

21134342053024 is an abundant number, since it is smaller than the sum of its proper divisors (23258764186976).

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

21134342053024 is a wasteful number, since it uses less digits than its factorization.

21134342053024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717182 (or 717174 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 21134342053024 its reverse (42035024343112), we get a palindrome (63169366396136).

The spelling of 21134342053024 in words is "twenty-one trillion, one hundred thirty-four billion, three hundred forty-two million, fifty-three thousand, twenty-four".