12310331111103 has 4 divisors (see below), whose sum is σ = 16413774814808. Its totient is φ = 8206887407400.

The previous prime is 12310331111069. The next prime is 12310331111203. The reversal of 12310331111103 is 30111113301321.

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

It is not a de Polignac number, because 12310331111103 - 2¹⁰ = 12310331110079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12310331111103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310331111203) 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, 2051721851848 + ... + 2051721851853.

It is an arithmetic number, because the mean of its divisors is an integer number (4103443703702).

Almost surely, 2^{12310331111103} is an apocalyptic number.

12310331111103 is a deficient number, since it is larger than the sum of its proper divisors (4103443703705).

12310331111103 is an equidigital number, since it uses as much as digits as its factorization.

12310331111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103443703704.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 12310331111103 its reverse (30111113301321), we get a palindrome (42421444412424).

The spelling of 12310331111103 in words is "twelve trillion, three hundred ten billion, three hundred thirty-one million, one hundred eleven thousand, one hundred three".