243320512234 has 8 divisors (see below), whose sum is σ = 364982861700. Its totient is φ = 121659558336.

The previous prime is 243320512147. The next prime is 243320512241. The reversal of 243320512234 is 432215023342.

243320512234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 241763973025 + 1556539209 = 491695^2 + 39453^2 .

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

It is a super-2 number, since 2×243320512234² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243320512196 and 243320512205.

It is an unprimeable number.

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, 503232 + ... + 860164.

Almost surely, 2^243320512234 is an apocalyptic number.

243320512234 is a deficient number, since it is larger than the sum of its proper divisors (121662349466).

243320512234 is a wasteful number, since it uses less digits than its factorization.

243320512234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697784.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 243320512234 its reverse (432215023342), we get a palindrome (675535535576).

The spelling of 243320512234 in words is "two hundred forty-three billion, three hundred twenty million, five hundred twelve thousand, two hundred thirty-four".