12144434201 has 4 divisors (see below), whose sum is σ = 12166238052. Its totient is φ = 12122630352.

The previous prime is 12144434167. The next prime is 12144434207. The reversal of 12144434201 is 10243444121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10243444121 = 223 ⋅45934727.

It can be written as a sum of positive squares in 2 ways, for example, as 647448025 + 11496986176 = 25445^2 + 107224^2 .

It is a cyclic number.

It is not a de Polignac number, because 12144434201 - 2¹⁰ = 12144433177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12144434207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10901090 + ... + 10902203.

It is an arithmetic number, because the mean of its divisors is an integer number (3041559513).

Almost surely, 2^12144434201 is an apocalyptic number.

It is an amenable number.

12144434201 is a deficient number, since it is larger than the sum of its proper divisors (21803851).

12144434201 is an equidigital number, since it uses as much as digits as its factorization.

12144434201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21803850.

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

Adding to 12144434201 its reverse (10243444121), we get a palindrome (22387878322).

The spelling of 12144434201 in words is "twelve billion, one hundred forty-four million, four hundred thirty-four thousand, two hundred one".