12012112323 has 24 divisors (see below), whose sum is σ = 18007797808. Its totient is φ = 8001690624.

The previous prime is 12012112291. The next prime is 12012112349. The reversal of 12012112323 is 32321121021.

It is not a de Polignac number, because 12012112323 - 2⁵ = 12012112291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012112296 and 12012112305.

It is not an unprimeable number, because it can be changed into a prime (12012111323) 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 23 ways as a sum of consecutive naturals, for example, 296115 + ... + 334227.

Almost surely, 2^12012112323 is an apocalyptic number.

12012112323 is a deficient number, since it is larger than the sum of its proper divisors (5995685485).

12012112323 is an equidigital number, since it uses as much as digits as its factorization.

12012112323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39425 (or 39413 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12012112323 its reverse (32321121021), we get a palindrome (44333233344).

The spelling of 12012112323 in words is "twelve billion, twelve million, one hundred twelve thousand, three hundred twenty-three".