243321033132 has 84 divisors (see below), whose sum is σ = 642711543600. Its totient is φ = 80562524832.

The previous prime is 243321033121. The next prime is 243321033139. The reversal of 243321033132 is 231330123342.

243321033132 is a `hidden beast` number, since 2 + 4 + 3 + 321 + 0 + 331 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 243321033096 and 243321033105.

It is not an unprimeable number, because it can be changed into a prime (243321033139) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 154473 + ... + 714495.

It is an arithmetic number, because the mean of its divisors is an integer number (7651327900).

Almost surely, 2^243321033132 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 243321033132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321355771800).

243321033132 is an abundant number, since it is smaller than the sum of its proper divisors (399390510468).

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

243321033132 is a wasteful number, since it uses less digits than its factorization.

243321033132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560194 (or 560177 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 243321033132 its reverse (231330123342), we get a palindrome (474651156474).

The spelling of 243321033132 in words is "two hundred forty-three billion, three hundred twenty-one million, thirty-three thousand, one hundred thirty-two".