12344666531 has 2 divisors, whose sum is σ = 12344666532. Its totient is φ = 12344666530.

The previous prime is 12344666449. The next prime is 12344666549. The reversal of 12344666531 is 13566644321.

It is a strong prime.

It is an emirp because it is prime and its reverse (13566644321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12344666531 - 2¹⁰ = 12344665507 is a prime.

It is a super-2 number, since 2×12344666531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12344666731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172333265 + 6172333266.

It is an arithmetic number, because the mean of its divisors is an integer number (6172333266).

Almost surely, 2^12344666531 is an apocalyptic number.

12344666531 is a deficient number, since it is larger than the sum of its proper divisors (1).

12344666531 is an equidigital number, since it uses as much as digits as its factorization.

12344666531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 41.

The spelling of 12344666531 in words is "twelve billion, three hundred forty-four million, six hundred sixty-six thousand, five hundred thirty-one".