12243736426129 has 8 divisors (see below), whose sum is σ = 13199058288360. Its totient is φ = 11290342561536.

The previous prime is 12243736426111. The next prime is 12243736426133. The reversal of 12243736426129 is 92162463734221.

It can be written as a sum of positive squares in 4 ways, for example, as 1500681350529 + 10743055075600 = 1225023^2 + 3277660^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12243736426129 - 2⁹ = 12243736425617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12243736426169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481986214 + ... + 482011615.

It is an arithmetic number, because the mean of its divisors is an integer number (1649882286045).

Almost surely, 2^{12243736426129} is an apocalyptic number.

It is an amenable number.

12243736426129 is a deficient number, since it is larger than the sum of its proper divisors (955321862231).

12243736426129 is an equidigital number, since it uses as much as digits as its factorization.

12243736426129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963998819.

The product of its digits is 5225472, while the sum is 52.

The spelling of 12243736426129 in words is "twelve trillion, two hundred forty-three billion, seven hundred thirty-six million, four hundred twenty-six thousand, one hundred twenty-nine".