243320512245 has 8 divisors (see below), whose sum is σ = 389312819616. Its totient is φ = 129770939856.

The previous prime is 243320512241. The next prime is 243320512291. The reversal of 243320512245 is 542215023342.

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

It is not a de Polignac number, because 243320512245 - 2² = 243320512241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243320512241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8110683727 + ... + 8110683756.

It is an arithmetic number, because the mean of its divisors is an integer number (48664102452).

Almost surely, 2^243320512245 is an apocalyptic number.

It is an amenable number.

243320512245 is a deficient number, since it is larger than the sum of its proper divisors (145992307371).

243320512245 is a wasteful number, since it uses less digits than its factorization.

243320512245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16221367491.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 243320512245 its reverse (542215023342), we get a palindrome (785535535587).

The spelling of 243320512245 in words is "two hundred forty-three billion, three hundred twenty million, five hundred twelve thousand, two hundred forty-five".