12323431444 has 12 divisors (see below), whose sum is σ = 22834593684. Its totient is φ = 5799261824.

The previous prime is 12323431423. The next prime is 12323431451. The reversal of 12323431444 is 44413432321.

It can be written as a sum of positive squares in 2 ways, for example, as 10037635344 + 2285796100 = 100188^2 + 47810^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90613399 + ... + 90613534.

It is an arithmetic number, because the mean of its divisors is an integer number (1902882807).

Almost surely, 2^12323431444 is an apocalyptic number.

It is an amenable number.

12323431444 is a deficient number, since it is larger than the sum of its proper divisors (10511162240).

12323431444 is a wasteful number, since it uses less digits than its factorization.

12323431444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181226954 (or 181226952 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

Adding to 12323431444 its reverse (44413432321), we get a palindrome (56736863765).

The spelling of 12323431444 in words is "twelve billion, three hundred twenty-three million, four hundred thirty-one thousand, four hundred forty-four".