243140302452 has 12 divisors (see below), whose sum is σ = 567327372416. Its totient is φ = 81046767480.

The previous prime is 243140302441. The next prime is 243140302459. The reversal of 243140302452 is 254203041342.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243140302459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10130845924 + ... + 10130845947.

Almost surely, 2^243140302452 is an apocalyptic number.

It is an amenable number.

243140302452 is an abundant number, since it is smaller than the sum of its proper divisors (324187069964).

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

243140302452 is a wasteful number, since it uses less digits than its factorization.

243140302452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20261691878 (or 20261691876 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 243140302452 its reverse (254203041342), we get a palindrome (497343343794).

The spelling of 243140302452 in words is "two hundred forty-three billion, one hundred forty million, three hundred two thousand, four hundred fifty-two".