243121245452 has 6 divisors (see below), whose sum is σ = 425462179548. Its totient is φ = 121560622724.

The previous prime is 243121245449. The next prime is 243121245469. The reversal of 243121245452 is 254542121342.

243121245452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30390155678 + ... + 30390155685.

It is an arithmetic number, because the mean of its divisors is an integer number (70910363258).

Almost surely, 2^243121245452 is an apocalyptic number.

It is an amenable number.

243121245452 is a deficient number, since it is larger than the sum of its proper divisors (182340934096).

243121245452 is a wasteful number, since it uses less digits than its factorization.

243121245452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60780311367 (or 60780311365 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

Adding to 243121245452 its reverse (254542121342), we get a palindrome (497663366794).

The spelling of 243121245452 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-five thousand, four hundred fifty-two".