12043111650 has 96 divisors (see below), whose sum is σ = 31404561408. Its totient is φ = 3048302400.

The previous prime is 12043111607. The next prime is 12043111679. The reversal of 12043111650 is 5611134021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12043111650.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 438627 + ... + 465273.

It is an arithmetic number, because the mean of its divisors is an integer number (327130848).

Almost surely, 2^12043111650 is an apocalyptic number.

12043111650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12043111650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15702280704).

12043111650 is an abundant number, since it is smaller than the sum of its proper divisors (19361449758).

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

12043111650 is a wasteful number, since it uses less digits than its factorization.

12043111650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26816 (or 26811 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 12043111650 its reverse (5611134021), we get a palindrome (17654245671).

The spelling of 12043111650 in words is "twelve billion, forty-three million, one hundred eleven thousand, six hundred fifty".