20343115200000 has 240 divisors, whose sum is σ = 67739843278800. Its totient is φ = 5424829440000.

The previous prime is 20343115199987. The next prime is 20343115200019. The reversal of 20343115200000 is 251134302.

It is a tau number, because it is divible by the number of its divisors (240).

It is a self number, because there is not a number n which added to its sum of digits gives 20343115200000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2680926 + ... + 6919074.

It is an arithmetic number, because the mean of its divisors is an integer number (282249346995).

Almost surely, 2^{20343115200000} is an apocalyptic number.

20343115200000 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 20343115200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33869921639400).

20343115200000 is an abundant number, since it is smaller than the sum of its proper divisors (47396728078800).

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

20343115200000 is an frugal number, since it uses more digits than its factorization.

20343115200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238195 (or 4238159 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20343115200000 its reverse (251134302), we get a palindrome (20343366334302).

The spelling of 20343115200000 in words is "twenty trillion, three hundred forty-three billion, one hundred fifteen million, two hundred thousand".