12144341121 has 16 divisors (see below), whose sum is σ = 17846609088. Its totient is φ = 7284326400.

The previous prime is 12144341117. The next prime is 12144341147. The reversal of 12144341121 is 12114344121.

It is a happy number.

It is not a de Polignac number, because 12144341121 - 2² = 12144341117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12144341091 and 12144341100.

It is not an unprimeable number, because it can be changed into a prime (12144341621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1893760 + ... + 1900161.

It is an arithmetic number, because the mean of its divisors is an integer number (1115413068).

Almost surely, 2^12144341121 is an apocalyptic number.

12144341121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12144341121 is a deficient number, since it is larger than the sum of its proper divisors (5702267967).

12144341121 is a wasteful number, since it uses less digits than its factorization.

12144341121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3794032.

The product of its digits is 768, while the sum is 24.

Adding to 12144341121 its reverse (12114344121), we get a palindrome (24258685242).

The spelling of 12144341121 in words is "twelve billion, one hundred forty-four million, three hundred forty-one thousand, one hundred twenty-one".