12131014111 has 4 divisors (see below), whose sum is σ = 12131437824. Its totient is φ = 12130590400.

The previous prime is 12131014109. The next prime is 12131014117. The reversal of 12131014111 is 11141013121.

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 12131014111 - 2¹ = 12131014109 is a prime.

It is a super-2 number, since 2×12131014111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131014117) 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, 165535 + ... + 227296.

It is an arithmetic number, because the mean of its divisors is an integer number (3032859456).

Almost surely, 2^12131014111 is an apocalyptic number.

12131014111 is a deficient number, since it is larger than the sum of its proper divisors (423713).

12131014111 is an equidigital number, since it uses as much as digits as its factorization.

12131014111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423712.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12131014111 its reverse (11141013121), we get a palindrome (23272027232).

The spelling of 12131014111 in words is "twelve billion, one hundred thirty-one million, fourteen thousand, one hundred eleven".