12023311444 has 12 divisors (see below), whose sum is σ = 21041844768. Its totient is φ = 6011355800.

The previous prime is 12023311427. The next prime is 12023311453. The reversal of 12023311444 is 44411332021.

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, 32259 + ... + 158389.

It is an arithmetic number, because the mean of its divisors is an integer number (1753487064).

Almost surely, 2^12023311444 is an apocalyptic number.

It is an amenable number.

12023311444 is a deficient number, since it is larger than the sum of its proper divisors (9018533324).

12023311444 is a wasteful number, since it uses less digits than its factorization.

12023311444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149966 (or 149964 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12023311444 its reverse (44411332021), we get a palindrome (56434643465).

The spelling of 12023311444 in words is "twelve billion, twenty-three million, three hundred eleven thousand, four hundred forty-four".