12443331042 has 24 divisors (see below), whose sum is σ = 26962610844. Its totient is φ = 4147460064.

The previous prime is 12443331031. The next prime is 12443331091. The reversal of 12443331042 is 24013334421.

12443331042 is a `hidden beast` number, since 124 + 433 + 3 + 104 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11601228681 + 842102361 = 107709^2 + 29019^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12443330997 and 12443331015.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415608 + ... + 444540.

Almost surely, 2^12443331042 is an apocalyptic number.

12443331042 is an abundant number, since it is smaller than the sum of its proper divisors (14519279802).

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

12443331042 is a wasteful number, since it uses less digits than its factorization.

12443331042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52834 (or 52831 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12443331042 its reverse (24013334421), we get a palindrome (36456665463).

The spelling of 12443331042 in words is "twelve billion, four hundred forty-three million, three hundred thirty-one thousand, forty-two".