12111311324 has 24 divisors (see below), whose sum is σ = 24679656288. Its totient is φ = 5092626240.

The previous prime is 12111311323. The next prime is 12111311371. The reversal of 12111311324 is 42311311121.

It is a junction number, because it is equal to n+sod(n) for n = 12111311296 and 12111311305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111311321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4079147 + ... + 4082114.

It is an arithmetic number, because the mean of its divisors is an integer number (1028319012).

Almost surely, 2^12111311324 is an apocalyptic number.

12111311324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12111311324 is an abundant number, since it is smaller than the sum of its proper divisors (12568344964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111311324 is a wasteful number, since it uses less digits than its factorization.

12111311324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8161325 (or 8161323 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 12111311324 its reverse (42311311121), we get a palindrome (54422622445).

The spelling of 12111311324 in words is "twelve billion, one hundred eleven million, three hundred eleven thousand, three hundred twenty-four".