12406531243 has 8 divisors (see below), whose sum is σ = 12834966816. Its totient is φ = 11984088000.

The previous prime is 12406531237. The next prime is 12406531253. The reversal of 12406531243 is 34213560421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12406531243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12406531253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1493871 + ... + 1502152.

It is an arithmetic number, because the mean of its divisors is an integer number (1604370852).

Almost surely, 2^12406531243 is an apocalyptic number.

12406531243 is a deficient number, since it is larger than the sum of its proper divisors (428435573).

12406531243 is a wasteful number, since it uses less digits than its factorization.

12406531243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996165.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 12406531243 in words is "twelve billion, four hundred six million, five hundred thirty-one thousand, two hundred forty-three".