12003312032231 has 4 divisors (see below), whose sum is σ = 12926643727032. Its totient is φ = 11079980337432.

The previous prime is 12003312032227. The next prime is 12003312032237. The reversal of 12003312032231 is 13223021330021.

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 12003312032231 - 2² = 12003312032227 is a prime.

It is a super-2 number, since 2×12003312032231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12003312032197 and 12003312032206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003312032237) 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, 461665847381 + ... + 461665847406.

It is an arithmetic number, because the mean of its divisors is an integer number (3231660931758).

Almost surely, 2^{12003312032231} is an apocalyptic number.

12003312032231 is a deficient number, since it is larger than the sum of its proper divisors (923331694801).

12003312032231 is an equidigital number, since it uses as much as digits as its factorization.

12003312032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923331694800.

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

Adding to 12003312032231 its reverse (13223021330021), we get a palindrome (25226333362252).

The spelling of 12003312032231 in words is "twelve trillion, three billion, three hundred twelve million, thirty-two thousand, two hundred thirty-one".