12144342013 has 4 divisors (see below), whose sum is σ = 12231711520. Its totient is φ = 12056972508.

The previous prime is 12144341947. The next prime is 12144342047. The reversal of 12144342013 is 31024344121.

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 12144342013 - 2⁹ = 12144341501 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 (12144342053) 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, 43684545 + ... + 43684822.

It is an arithmetic number, because the mean of its divisors is an integer number (3057927880).

Almost surely, 2^12144342013 is an apocalyptic number.

It is an amenable number.

12144342013 is a deficient number, since it is larger than the sum of its proper divisors (87369507).

12144342013 is an equidigital number, since it uses as much as digits as its factorization.

12144342013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87369506.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12144342013 its reverse (31024344121), we get a palindrome (43168686134).

The spelling of 12144342013 in words is "twelve billion, one hundred forty-four million, three hundred forty-two thousand, thirteen".