12040287239 has 2 divisors, whose sum is σ = 12040287240. Its totient is φ = 12040287238.

The previous prime is 12040287199. The next prime is 12040287271. The reversal of 12040287239 is 93278204021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12040287239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12040283239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020143619 + 6020143620.

It is an arithmetic number, because the mean of its divisors is an integer number (6020143620).

Almost surely, 2^12040287239 is an apocalyptic number.

12040287239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12040287239 is an equidigital number, since it uses as much as digits as its factorization.

12040287239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 12040287239 in words is "twelve billion, forty million, two hundred eighty-seven thousand, two hundred thirty-nine".