12424340002 has 4 divisors (see below), whose sum is σ = 18636510006. Its totient is φ = 6212170000.

The previous prime is 12424339957. The next prime is 12424340009. The reversal of 12424340002 is 20004342421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20004342421 = 7 ⋅2857763203.

It can be written as a sum of positive squares in only one way, i.e., 12316782361 + 107557641 = 110981^2 + 10371^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12424340009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3106084999 + ... + 3106085002.

Almost surely, 2^12424340002 is an apocalyptic number.

12424340002 is a deficient number, since it is larger than the sum of its proper divisors (6212170004).

12424340002 is an equidigital number, since it uses as much as digits as its factorization.

12424340002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6212170003.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12424340002 its reverse (20004342421), we get a palindrome (32428682423).

The spelling of 12424340002 in words is "twelve billion, four hundred twenty-four million, three hundred forty thousand, two".