12003023444 has 24 divisors (see below), whose sum is σ = 22114965600. Its totient is φ = 5684580000.

The previous prime is 12003023407. The next prime is 12003023491. The reversal of 12003023444 is 44432030021.

It is a super-2 number, since 2×12003023444² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 522194 + ... + 544694.

It is an arithmetic number, because the mean of its divisors is an integer number (921456900).

Almost surely, 2^12003023444 is an apocalyptic number.

It is an amenable number.

12003023444 is a deficient number, since it is larger than the sum of its proper divisors (10111942156).

12003023444 is a wasteful number, since it uses less digits than its factorization.

12003023444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29543 (or 29541 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 12003023444 its reverse (44432030021), we get a palindrome (56435053465).

The spelling of 12003023444 in words is "twelve billion, three million, twenty-three thousand, four hundred forty-four".