12311012144 has 80 divisors (see below), whose sum is σ = 25672356864. Its totient is φ = 5708102400.

The previous prime is 12311012143. The next prime is 12311012159. The reversal of 12311012144 is 44121011321.

12311012144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12311012144² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12311012141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1124939 + ... + 1135829.

Almost surely, 2^12311012144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12311012144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12836178432).

12311012144 is an abundant number, since it is smaller than the sum of its proper divisors (13361344720).

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

12311012144 is a wasteful number, since it uses less digits than its factorization.

12311012144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11026 (or 11020 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12311012144 its reverse (44121011321), we get a palindrome (56432023465).

The spelling of 12311012144 in words is "twelve billion, three hundred eleven million, twelve thousand, one hundred forty-four".