12240234239 has 2 divisors, whose sum is σ = 12240234240. Its totient is φ = 12240234238.

The previous prime is 12240234203. The next prime is 12240234257. The reversal of 12240234239 is 93243204221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12240234239 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12240237239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120117119 + 6120117120.

It is an arithmetic number, because the mean of its divisors is an integer number (6120117120).

Almost surely, 2^12240234239 is an apocalyptic number.

12240234239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240234239 is an equidigital number, since it uses as much as digits as its factorization.

12240234239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 12240234239 in words is "twelve billion, two hundred forty million, two hundred thirty-four thousand, two hundred thirty-nine".