243243201124 has 48 divisors (see below), whose sum is σ = 532036181376. Its totient is φ = 94533696000.

The previous prime is 243243201107. The next prime is 243243201161. The reversal of 243243201124 is 421102342342.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 243243201092 and 243243201101.

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 15 ways as a sum of consecutive naturals, for example, 861219 + ... + 1108234.

It is an arithmetic number, because the mean of its divisors is an integer number (11084087112).

Almost surely, 2^243243201124 is an apocalyptic number.

It is an amenable number.

243243201124 is an abundant number, since it is smaller than the sum of its proper divisors (288792980252).

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

243243201124 is a wasteful number, since it uses less digits than its factorization.

243243201124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969876 (or 1969874 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 243243201124 its reverse (421102342342), we get a palindrome (664345543466).

The spelling of 243243201124 in words is "two hundred forty-three billion, two hundred forty-three million, two hundred one thousand, one hundred twenty-four".