12101040144 has 80 divisors (see below), whose sum is σ = 34776246400. Its totient is φ = 4028828544.

The previous prime is 12101040139. The next prime is 12101040197. The reversal of 12101040144 is 44104010121.

12101040144 is a `hidden beast` number, since 1 + 210 + 10 + 401 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352077 + ... + 384915.

It is an arithmetic number, because the mean of its divisors is an integer number (434703080).

Almost surely, 2^12101040144 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 12101040144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17388123200).

12101040144 is an abundant number, since it is smaller than the sum of its proper divisors (22675206256).

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

12101040144 is a wasteful number, since it uses less digits than its factorization.

12101040144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33709 (or 33697 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12101040144 its reverse (44104010121), we get a palindrome (56205050265).

The spelling of 12101040144 in words is "twelve billion, one hundred one million, forty thousand, one hundred forty-four".