12033143123 has 4 divisors (see below), whose sum is σ = 12033929160. Its totient is φ = 12032357088.

The previous prime is 12033143069. The next prime is 12033143141. The reversal of 12033143123 is 32134133021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12033143123 - 2¹⁴ = 12033126739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12033143173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369590 + ... + 400827.

It is an arithmetic number, because the mean of its divisors is an integer number (3008482290).

Almost surely, 2^12033143123 is an apocalyptic number.

12033143123 is a deficient number, since it is larger than the sum of its proper divisors (786037).

12033143123 is an equidigital number, since it uses as much as digits as its factorization.

12033143123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786036.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12033143123 its reverse (32134133021), we get a palindrome (44167276144).

The spelling of 12033143123 in words is "twelve billion, thirty-three million, one hundred forty-three thousand, one hundred twenty-three".