243320235452 has 12 divisors (see below), whose sum is σ = 486640470960. Its totient is φ = 104280100896.

The previous prime is 243320235437. The next prime is 243320235491. The reversal of 243320235452 is 254532023342.

243320235452 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4345004177 + ... + 4345004232.

It is an arithmetic number, because the mean of its divisors is an integer number (40553372580).

Almost surely, 2^243320235452 is an apocalyptic number.

It is an amenable number.

243320235452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243320235452 is a wasteful number, since it uses less digits than its factorization.

243320235452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8690008420 (or 8690008418 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 243320235452 its reverse (254532023342), we get a palindrome (497852258794).

The spelling of 243320235452 in words is "two hundred forty-three billion, three hundred twenty million, two hundred thirty-five thousand, four hundred fifty-two".