12129817328141 has 4 divisors (see below), whose sum is σ = 12130803424284. Its totient is φ = 12128831232000.

The previous prime is 12129817328113. The next prime is 12129817328143. The reversal of 12129817328141 is 14182371892121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5652130611241 + 6477686716900 = 2377421^2 + 2545130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12129817328141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12129817328141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12129817328143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493029620 + ... + 493054221.

It is an arithmetic number, because the mean of its divisors is an integer number (3032700856071).

Almost surely, 2^{12129817328141} is an apocalyptic number.

It is an amenable number.

12129817328141 is a deficient number, since it is larger than the sum of its proper divisors (986096143).

12129817328141 is an equidigital number, since it uses as much as digits as its factorization.

12129817328141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986096142.

The product of its digits is 387072, while the sum is 50.

The spelling of 12129817328141 in words is "twelve trillion, one hundred twenty-nine billion, eight hundred seventeen million, three hundred twenty-eight thousand, one hundred forty-one".