12412303171861 has 4 divisors (see below), whose sum is σ = 12412450319724. Its totient is φ = 12412156024000.

The previous prime is 12412303171859. The next prime is 12412303171867. The reversal of 12412303171861 is 16817130321421.

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 2902573245636 + 9509729926225 = 1703694^2 + 3083785^2 .

It is a cyclic number.

It is not a de Polignac number, because 12412303171861 - 2¹ = 12412303171859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12412303171867) 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, 73447330 + ... + 73616131.

It is an arithmetic number, because the mean of its divisors is an integer number (3103112579931).

Almost surely, 2^{12412303171861} is an apocalyptic number.

It is an amenable number.

12412303171861 is a deficient number, since it is larger than the sum of its proper divisors (147147863).

12412303171861 is an equidigital number, since it uses as much as digits as its factorization.

12412303171861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147147862.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 12412303171861 in words is "twelve trillion, four hundred twelve billion, three hundred three million, one hundred seventy-one thousand, eight hundred sixty-one".