12142444013 has 4 divisors (see below), whose sum is σ = 13877078880. Its totient is φ = 10407809148.

The previous prime is 12142444007. The next prime is 12142444049. The reversal of 12142444013 is 31044424121.

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.

It is a cyclic number.

It is not a de Polignac number, because 12142444013 - 2⁶ = 12142443949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142446013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867317423 + ... + 867317436.

It is an arithmetic number, because the mean of its divisors is an integer number (3469269720).

Almost surely, 2^12142444013 is an apocalyptic number.

It is an amenable number.

12142444013 is a deficient number, since it is larger than the sum of its proper divisors (1734634867).

12142444013 is an equidigital number, since it uses as much as digits as its factorization.

12142444013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734634866.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 12142444013 its reverse (31044424121), we get a palindrome (43186868134).

The spelling of 12142444013 in words is "twelve billion, one hundred forty-two million, four hundred forty-four thousand, thirteen".