20343553230000 has 800 divisors, whose sum is σ = 88174723456512. Its totient is φ = 3902054400000.

The previous prime is 20343553229999. The next prime is 20343553230031. The reversal of 20343553230000 is 3235534302.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 20343553230000.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 29691280 + ... + 30368720.

Almost surely, 2^{20343553230000} is an apocalyptic number.

20343553230000 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 20343553230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44087361728256).

20343553230000 is an abundant number, since it is smaller than the sum of its proper divisors (67831170226512).

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

20343553230000 is a wasteful number, since it uses less digits than its factorization.

20343553230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677503 (or 677482 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 30.

Adding to 20343553230000 its reverse (3235534302), we get a palindrome (20346788764302).

It can be divided in two parts, 203435 and 53230000, that added together give a palindrome (53433435).

The spelling of 20343553230000 in words is "twenty trillion, three hundred forty-three billion, five hundred fifty-three million, two hundred thirty thousand".