12844307530531 has 2 divisors, whose sum is σ = 12844307530532. Its totient is φ = 12844307530530.

The previous prime is 12844307530529. The next prime is 12844307530559. The reversal of 12844307530531 is 13503570344821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12844307530531 - 2¹ = 12844307530529 is a prime.

It is a super-2 number, since 2×12844307530531² (a number of 27 digits) contains 22 as substring.

Together with 12844307530529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12844307533531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6422153765265 + 6422153765266.

It is an arithmetic number, because the mean of its divisors is an integer number (6422153765266).

Almost surely, 2^{12844307530531} is an apocalyptic number.

12844307530531 is a deficient number, since it is larger than the sum of its proper divisors (1).

12844307530531 is an equidigital number, since it uses as much as digits as its factorization.

12844307530531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 46.

It can be divided in two parts, 1284430 and 7530531, that added together give a square (8814961 = 2969²).

The spelling of 12844307530531 in words is "twelve trillion, eight hundred forty-four billion, three hundred seven million, five hundred thirty thousand, five hundred thirty-one".