12012134323 has 64 divisors (see below), whose sum is σ = 14898723840. Its totient is φ = 9471168000.

The previous prime is 12012134317. The next prime is 12012134339. The reversal of 12012134323 is 32343121021.

It is not a de Polignac number, because 12012134323 - 2²⁹ = 11475263411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12012134294 and 12012134303.

It is not an unprimeable number, because it can be changed into a prime (12012134383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66365293 + ... + 66365473.

It is an arithmetic number, because the mean of its divisors is an integer number (232792560).

Almost surely, 2^12012134323 is an apocalyptic number.

12012134323 is a deficient number, since it is larger than the sum of its proper divisors (2886589517).

12012134323 is a wasteful number, since it uses less digits than its factorization.

12012134323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12012134323 its reverse (32343121021), we get a palindrome (44355255344).

The spelling of 12012134323 in words is "twelve billion, twelve million, one hundred thirty-four thousand, three hundred twenty-three".