12111212324 has 6 divisors (see below), whose sum is σ = 21194621574. Its totient is φ = 6055606160.

The previous prime is 12111212317. The next prime is 12111212359. The reversal of 12111212324 is 42321211121.

12111212324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11524022500 + 587189824 = 107350^2 + 24232^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12111212296 and 12111212305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1513901537 + ... + 1513901544.

It is an arithmetic number, because the mean of its divisors is an integer number (3532436929).

Almost surely, 2^12111212324 is an apocalyptic number.

It is an amenable number.

12111212324 is a deficient number, since it is larger than the sum of its proper divisors (9083409250).

12111212324 is a wasteful number, since it uses less digits than its factorization.

12111212324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027803085 (or 3027803083 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

Adding to 12111212324 its reverse (42321211121), we get a palindrome (54432423445).

The spelling of 12111212324 in words is "twelve billion, one hundred eleven million, two hundred twelve thousand, three hundred twenty-four".