12321131000111 has 4 divisors (see below), whose sum is σ = 12354703564512. Its totient is φ = 12287558435712.

The previous prime is 12321131000063. The next prime is 12321131000137. The reversal of 12321131000111 is 11100013112321.

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 12321131000111 - 2³⁰ = 12320057258287 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 12321131000111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321131000011) 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, 16786281650 + ... + 16786282383.

It is an arithmetic number, because the mean of its divisors is an integer number (3088675891128).

Almost surely, 2^{12321131000111} is an apocalyptic number.

12321131000111 is a deficient number, since it is larger than the sum of its proper divisors (33572564401).

12321131000111 is an equidigital number, since it uses as much as digits as its factorization.

12321131000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33572564400.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 12321131000111 its reverse (11100013112321), we get a palindrome (23421144112432).

The spelling of 12321131000111 in words is "twelve trillion, three hundred twenty-one billion, one hundred thirty-one million, one hundred eleven", and thus it is an aban number.