12043321134 has 64 divisors (see below), whose sum is σ = 27511239168. Its totient is φ = 3486384000.

The previous prime is 12043321127. The next prime is 12043321141. The reversal of 12043321134 is 43112334021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12043321127) and next prime (12043321141).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54409 + ... + 164459.

It is an arithmetic number, because the mean of its divisors is an integer number (429863112).

Almost surely, 2^12043321134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12043321134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13755619584).

12043321134 is an abundant number, since it is smaller than the sum of its proper divisors (15467918034).

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

12043321134 is a wasteful number, since it uses less digits than its factorization.

12043321134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110153.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12043321134 its reverse (43112334021), we get a palindrome (55155655155).

The spelling of 12043321134 in words is "twelve billion, forty-three million, three hundred twenty-one thousand, one hundred thirty-four".