243133301532 has 96 divisors (see below), whose sum is σ = 624870005760. Its totient is φ = 72964903680.

The previous prime is 243133301519. The next prime is 243133301557. The reversal of 243133301532 is 235103331342.

It is a super-2 number, since 2×243133301532² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243133301532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50830413 + ... + 50835195.

It is an arithmetic number, because the mean of its divisors is an integer number (6509062560).

Almost surely, 2^243133301532 is an apocalyptic number.

243133301532 is a gapful number since it is divisible by the number (22) 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 243133301532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312435002880).

243133301532 is an abundant number, since it is smaller than the sum of its proper divisors (381736704228).

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

243133301532 is a wasteful number, since it uses less digits than its factorization.

243133301532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8443 (or 8441 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 30.

Adding to 243133301532 its reverse (235103331342), we get a palindrome (478236632874).

The spelling of 243133301532 in words is "two hundred forty-three billion, one hundred thirty-three million, three hundred one thousand, five hundred thirty-two".