12312310311232 has 28 divisors (see below), whose sum is σ = 24432672556960. Its totient is φ = 6156046359936.

The previous prime is 12312310311229. The next prime is 12312310311233. The reversal of 12312310311232 is 23211301321321.

It is a junction number, because it is equal to n+sod(n) for n = 12312310311197 and 12312310311206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312310311233) 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, 2012623 + ... + 5354929.

Almost surely, 2^{12312310311232} is an apocalyptic number.

It is an amenable number.

12312310311232 is a deficient number, since it is larger than the sum of its proper divisors (12120362245728).

12312310311232 is an equidigital number, since it uses as much as digits as its factorization.

12312310311232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399878 (or 3399868 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12312310311232 its reverse (23211301321321), we get a palindrome (35523611632553).

The spelling of 12312310311232 in words is "twelve trillion, three hundred twelve billion, three hundred ten million, three hundred eleven thousand, two hundred thirty-two".