243453312300000 has 576 divisors, whose sum is σ = 871615426042368. Its totient is φ = 59004153600000.

The previous prime is 243453312299983. The next prime is 243453312300001. The reversal of 243453312300000 is 3213354342.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243453312300001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19083893622 + ... + 19083906378.

It is an arithmetic number, because the mean of its divisors is an integer number (1513221225768).

Almost surely, 2^{243453312300000} is an apocalyptic number.

243453312300000 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 243453312300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435807713021184).

243453312300000 is an abundant number, since it is smaller than the sum of its proper divisors (628162113742368).

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

243453312300000 is a wasteful number, since it uses less digits than its factorization.

243453312300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18589 (or 18561 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 243453312300000 its reverse (3213354342), we get a palindrome (243456525654342).

The spelling of 243453312300000 in words is "two hundred forty-three trillion, four hundred fifty-three billion, three hundred twelve million, three hundred thousand".