12443422402 has 32 divisors (see below), whose sum is σ = 19012888944. Its totient is φ = 6107136000.

The previous prime is 12443422339. The next prime is 12443422447. The reversal of 12443422402 is 20422434421.

It can be written as a sum of positive squares in 8 ways, for example, as 11031090841 + 1412331561 = 105029^2 + 37581^2 .

It is a super-2 number, since 2×12443422402² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 14587408 + ... + 14588260.

Almost surely, 2^12443422402 is an apocalyptic number.

12443422402 is a deficient number, since it is larger than the sum of its proper divisors (6569466542).

12443422402 is a wasteful number, since it uses less digits than its factorization.

12443422402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 12443422402 its reverse (20422434421), we get a palindrome (32865856823).

The spelling of 12443422402 in words is "twelve billion, four hundred forty-three million, four hundred twenty-two thousand, four hundred two".