12312331111001 has 4 divisors (see below), whose sum is σ = 12409278600192. Its totient is φ = 12215383621812.

The previous prime is 12312331110917. The next prime is 12312331111007. The reversal of 12312331111001 is 10011113321321.

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 a de Polignac number, because none of the positive numbers 2^k-12312331111001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312331111007) 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, 48473744405 + ... + 48473744658.

It is an arithmetic number, because the mean of its divisors is an integer number (3102319650048).

Almost surely, 2^{12312331111001} is an apocalyptic number.

It is an amenable number.

12312331111001 is a deficient number, since it is larger than the sum of its proper divisors (96947489191).

12312331111001 is an equidigital number, since it uses as much as digits as its factorization.

12312331111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96947489190.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 12312331111001 its reverse (10011113321321), we get a palindrome (22323444432322).

The spelling of 12312331111001 in words is "twelve trillion, three hundred twelve billion, three hundred thirty-one million, one hundred eleven thousand, one".