12444132243 has 16 divisors (see below), whose sum is σ = 17624337696. Its totient is φ = 7783127040.

The previous prime is 12444132229. The next prime is 12444132301. The reversal of 12444132243 is 34223144421.

It is not a de Polignac number, because 12444132243 - 2¹³ = 12444124051 is a prime.

It is a super-2 number, since 2×12444132243² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12444132243.

It is not an unprimeable number, because it can be changed into a prime (12444132443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373818 + ... + 405743.

It is an arithmetic number, because the mean of its divisors is an integer number (1101521106).

Almost surely, 2^12444132243 is an apocalyptic number.

12444132243 is a deficient number, since it is larger than the sum of its proper divisors (5180205453).

12444132243 is a wasteful number, since it uses less digits than its factorization.

12444132243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779894.

The product of its digits is 18432, while the sum is 30.

Adding to 12444132243 its reverse (34223144421), we get a palindrome (46667276664).

The spelling of 12444132243 in words is "twelve billion, four hundred forty-four million, one hundred thirty-two thousand, two hundred forty-three".