243234424337 has 2 divisors, whose sum is σ = 243234424338. Its totient is φ = 243234424336.

The previous prime is 243234424313. The next prime is 243234424369. The reversal of 243234424337 is 733424432342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242717816896 + 516607441 = 492664^2 + 22729^2 .

It is a cyclic number.

It is not a de Polignac number, because 243234424337 - 2³⁰ = 242160682513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243234424294 and 243234424303.

It is not a weakly prime, because it can be changed into another prime (243234420337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121617212168 + 121617212169.

It is an arithmetic number, because the mean of its divisors is an integer number (121617212169).

Almost surely, 2^243234424337 is an apocalyptic number.

It is an amenable number.

243234424337 is a deficient number, since it is larger than the sum of its proper divisors (1).

243234424337 is an equidigital number, since it uses as much as digits as its factorization.

243234424337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 41.

Adding to 243234424337 its reverse (733424432342), we get a palindrome (976658856679).

The spelling of 243234424337 in words is "two hundred forty-three billion, two hundred thirty-four million, four hundred twenty-four thousand, three hundred thirty-seven".