12437216013 has 4 divisors (see below), whose sum is σ = 16582954688. Its totient is φ = 8291477340.

The previous prime is 12437215979. The next prime is 12437216039. The reversal of 12437216013 is 31061273421.

It is a happy number.

12437216013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31061273421 = 3 ⋅10353757807.

It is not a de Polignac number, because 12437216013 - 2⁹ = 12437215501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12437216513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2072869333 + ... + 2072869338.

It is an arithmetic number, because the mean of its divisors is an integer number (4145738672).

Almost surely, 2^12437216013 is an apocalyptic number.

It is an amenable number.

12437216013 is a deficient number, since it is larger than the sum of its proper divisors (4145738675).

12437216013 is an equidigital number, since it uses as much as digits as its factorization.

12437216013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145738674.

The product of its (nonzero) digits is 6048, while the sum is 30.

Adding to 12437216013 its reverse (31061273421), we get a palindrome (43498489434).

The spelling of 12437216013 in words is "twelve billion, four hundred thirty-seven million, two hundred sixteen thousand, thirteen".