243120454052 has 96 divisors (see below), whose sum is σ = 536525144064. Its totient is φ = 94096569600.

The previous prime is 243120454039. The next prime is 243120454061. The reversal of 243120454052 is 250454021342.

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, 670013 + ... + 967035.

It is an arithmetic number, because the mean of its divisors is an integer number (5588803584).

Almost surely, 2^243120454052 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 243120454052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268262572032).

243120454052 is an abundant number, since it is smaller than the sum of its proper divisors (293404690012).

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

243120454052 is a wasteful number, since it uses less digits than its factorization.

243120454052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297129 (or 297127 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 243120454052 its reverse (250454021342), we get a palindrome (493574475394).

The spelling of 243120454052 in words is "two hundred forty-three billion, one hundred twenty million, four hundred fifty-four thousand, fifty-two".