243120322045 has 8 divisors (see below), whose sum is σ = 291752743680. Its totient is φ = 194490686160.

The previous prime is 243120322033. The next prime is 243120322057. The reversal of 243120322045 is 540223021342.

It is an interprime number because it is at equal distance from previous prime (243120322033) and next prime (243120322057).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243120322045 - 2¹⁹ = 243119797757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499365 + ... + 857674.

It is an arithmetic number, because the mean of its divisors is an integer number (36469092960).

Almost surely, 2^243120322045 is an apocalyptic number.

It is an amenable number.

243120322045 is a deficient number, since it is larger than the sum of its proper divisors (48632421635).

243120322045 is a wasteful number, since it uses less digits than its factorization.

243120322045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392875.

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

Adding to 243120322045 its reverse (540223021342), we get a palindrome (783343343387).

The spelling of 243120322045 in words is "two hundred forty-three billion, one hundred twenty million, three hundred twenty-two thousand, forty-five".