12443051242132 has 60 divisors (see below), whose sum is σ = 25439303474676. Its totient is φ = 5325126038400.

The previous prime is 12443051241983. The next prime is 12443051242133. The reversal of 12443051242132 is 23124215034421.

It can be written as a sum of positive squares in 2 ways, for example, as 4974166720656 + 7468884521476 = 2230284^2 + 2732926^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443051242133) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5808288 + ... + 7656520.

Almost surely, 2^{12443051242132} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12443051242132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12719651737338).

12443051242132 is an abundant number, since it is smaller than the sum of its proper divisors (12996252232544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12443051242132 is an equidigital number, since it uses as much as digits as its factorization.

12443051242132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848966 (or 1848943 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 12443051242132 its reverse (23124215034421), we get a palindrome (35567266276553).

The spelling of 12443051242132 in words is "twelve trillion, four hundred forty-three billion, fifty-one million, two hundred forty-two thousand, one hundred thirty-two".