243320512135 has 8 divisors (see below), whose sum is σ = 292545048816. Its totient is φ = 194282786880.

The previous prime is 243320512129. The next prime is 243320512147. The reversal of 243320512135 is 531215023342.

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

It is not a de Polignac number, because 243320512135 - 2¹¹ = 243320510087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243320512097 and 243320512106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46699989 + ... + 46705198.

It is an arithmetic number, because the mean of its divisors is an integer number (36568131102).

Almost surely, 2^243320512135 is an apocalyptic number.

243320512135 is a deficient number, since it is larger than the sum of its proper divisors (49224536681).

243320512135 is an equidigital number, since it uses as much as digits as its factorization.

243320512135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93405713.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 243320512135 its reverse (531215023342), we get a palindrome (774535535477).

The spelling of 243320512135 in words is "two hundred forty-three billion, three hundred twenty million, five hundred twelve thousand, one hundred thirty-five".