21342001524000 has 384 divisors, whose sum is σ = 71917980406272. Its totient is φ = 5528751206400.

The previous prime is 21342001523977. The next prime is 21342001524047. The reversal of 21342001524000 is 42510024312.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 287230854 + ... + 287305146.

It is an arithmetic number, because the mean of its divisors is an integer number (187286407308).

Almost surely, 2^{21342001524000} is an apocalyptic number.

21342001524000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21342001524000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35958990203136).

21342001524000 is an abundant number, since it is smaller than the sum of its proper divisors (50575978882272).

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

21342001524000 is a wasteful number, since it uses less digits than its factorization.

21342001524000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75005 (or 74987 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 21342001524000 its reverse (42510024312), we get a palindrome (21384511548312).

The spelling of 21342001524000 in words is "twenty-one trillion, three hundred forty-two billion, one million, five hundred twenty-four thousand".