12001231011233 has 4 divisors (see below), whose sum is σ = 12002442410160. Its totient is φ = 12000019612308.

The previous prime is 12001231011199. The next prime is 12001231011283. The reversal of 12001231011233 is 33211013210021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12001231011233 - 2⁴² = 7603184500129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001231011283) 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, 605684603 + ... + 605704416.

It is an arithmetic number, because the mean of its divisors is an integer number (3000610602540).

Almost surely, 2^{12001231011233} is an apocalyptic number.

It is an amenable number.

12001231011233 is a deficient number, since it is larger than the sum of its proper divisors (1211398927).

12001231011233 is an equidigital number, since it uses as much as digits as its factorization.

12001231011233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211398926.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12001231011233 its reverse (33211013210021), we get a palindrome (45212244221254).

The spelling of 12001231011233 in words is "twelve trillion, one billion, two hundred thirty-one million, eleven thousand, two hundred thirty-three".