243201024523 has 4 divisors (see below), whose sum is σ = 257506967160. Its totient is φ = 228895081888.

The previous prime is 243201024511. The next prime is 243201024533. The reversal of 243201024523 is 325420102342.

243201024523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243201024523 - 2⁵ = 243201024491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243201024491 and 243201024500.

It is not an unprimeable number, because it can be changed into a prime (243201024503) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 7152971293 + ... + 7152971326.

It is an arithmetic number, because the mean of its divisors is an integer number (64376741790).

Almost surely, 2^243201024523 is an apocalyptic number.

243201024523 is a deficient number, since it is larger than the sum of its proper divisors (14305942637).

243201024523 is a wasteful number, since it uses less digits than its factorization.

243201024523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14305942636.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 243201024523 its reverse (325420102342), we get a palindrome (568621126865).

The spelling of 243201024523 in words is "two hundred forty-three billion, two hundred one million, twenty-four thousand, five hundred twenty-three".