243202401312 has 192 divisors, whose sum is σ = 719422534656. Its totient is φ = 71424737280.

The previous prime is 243202401293. The next prime is 243202401313. The reversal of 243202401312 is 213104202342.

It is a happy number.

243202401312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (243202401313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2781168 + ... + 2867280.

It is an arithmetic number, because the mean of its divisors is an integer number (3746992368).

Almost surely, 2^243202401312 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 243202401312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359711267328).

243202401312 is an abundant number, since it is smaller than the sum of its proper divisors (476220133344).

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

243202401312 is a wasteful number, since it uses less digits than its factorization.

243202401312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86243 (or 86235 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 243202401312 its reverse (213104202342), we get a palindrome (456306603654).

The spelling of 243202401312 in words is "two hundred forty-three billion, two hundred two million, four hundred one thousand, three hundred twelve".