243101331552 has 96 divisors (see below), whose sum is σ = 641522899584. Its totient is φ = 80604979200.

The previous prime is 243101331541. The next prime is 243101331569. The reversal of 243101331552 is 255133101342.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28129152 + ... + 28137792.

It is an arithmetic number, because the mean of its divisors is an integer number (6682530204).

Almost surely, 2^243101331552 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 243101331552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320761449792).

243101331552 is an abundant number, since it is smaller than the sum of its proper divisors (398421568032).

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

243101331552 is a wasteful number, since it uses less digits than its factorization.

243101331552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10172 (or 10164 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 243101331552 its reverse (255133101342), we get a palindrome (498234432894).

The spelling of 243101331552 in words is "two hundred forty-three billion, one hundred one million, three hundred thirty-one thousand, five hundred fifty-two".