12043243212 has 192 divisors, whose sum is σ = 38443797504. Its totient is φ = 2832860160.

The previous prime is 12043243211. The next prime is 12043243217. The reversal of 12043243212 is 21234234021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12043243211) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 627178 + ... + 646094.

It is an arithmetic number, because the mean of its divisors is an integer number (200228112).

Almost surely, 2^12043243212 is an apocalyptic number.

12043243212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12043243212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19221898752).

12043243212 is an abundant number, since it is smaller than the sum of its proper divisors (26400554292).

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

12043243212 is a wasteful number, since it uses less digits than its factorization.

12043243212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19008 (or 19006 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12043243212 its reverse (21234234021), we get a palindrome (33277477233).

It can be divided in two parts, 12043 and 243212, that added together give a triangular number (255255 = T₇₁₄).

The spelling of 12043243212 in words is "twelve billion, forty-three million, two hundred forty-three thousand, two hundred twelve".