243120210045 has 32 divisors (see below), whose sum is σ = 406016969472. Its totient is φ = 123992343552.

The previous prime is 243120210029. The next prime is 243120210079. The reversal of 243120210045 is 540012021342.

It is not a de Polignac number, because 243120210045 - 2⁴ = 243120210029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243120209997 and 243120210024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1180159 + ... + 1370771.

It is an arithmetic number, because the mean of its divisors is an integer number (12688030296).

Almost surely, 2^243120210045 is an apocalyptic number.

It is an amenable number.

243120210045 is a deficient number, since it is larger than the sum of its proper divisors (162896759427).

243120210045 is a wasteful number, since it uses less digits than its factorization.

243120210045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194341.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 243120210045 its reverse (540012021342), we get a palindrome (783132231387).

The spelling of 243120210045 in words is "two hundred forty-three billion, one hundred twenty million, two hundred ten thousand, forty-five".