12323422144 has 42 divisors (see below), whose sum is σ = 26879526632. Its totient is φ = 5601552000.

The previous prime is 12323422141. The next prime is 12323422151. The reversal of 12323422144 is 44122432321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323422141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 787932 + ... + 803419.

Almost surely, 2^12323422144 is an apocalyptic number.

It is an amenable number.

12323422144 is an abundant number, since it is smaller than the sum of its proper divisors (14556104488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12323422144 is a wasteful number, since it uses less digits than its factorization.

12323422144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591385 (or 1591364 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

Adding to 12323422144 its reverse (44122432321), we get a palindrome (56445854465).

The spelling of 12323422144 in words is "twelve billion, three hundred twenty-three million, four hundred twenty-two thousand, one hundred forty-four".