243123203452 has 48 divisors (see below), whose sum is σ = 437810365440. Its totient is φ = 118075568832.

The previous prime is 243123203437. The next prime is 243123203483. The reversal of 243123203452 is 254302321342.

243123203452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×243123203452⁴ (a number of 47 digits) contains 4444 as substring.

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, 27120723 + ... + 27129685.

It is an arithmetic number, because the mean of its divisors is an integer number (9121049280).

Almost surely, 2^243123203452 is an apocalyptic number.

It is an amenable number.

243123203452 is a deficient number, since it is larger than the sum of its proper divisors (194687161988).

243123203452 is a wasteful number, since it uses less digits than its factorization.

243123203452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10090 (or 10088 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 243123203452 its reverse (254302321342), we get a palindrome (497425524794).

The spelling of 243123203452 in words is "two hundred forty-three billion, one hundred twenty-three million, two hundred three thousand, four hundred fifty-two".