12111024533 has 4 divisors (see below), whose sum is σ = 12117103308. Its totient is φ = 12104945760.

The previous prime is 12111024473. The next prime is 12111024551. The reversal of 12111024533 is 33542011121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33542011121 = 397 ⋅84488693.

It can be written as a sum of positive squares in 2 ways, for example, as 7672533649 + 4438490884 = 87593^2 + 66622^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111024533 - 2²⁶ = 12043915669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12111024499 and 12111024508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111024733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3036398 + ... + 3040383.

It is an arithmetic number, because the mean of its divisors is an integer number (3029275827).

Almost surely, 2^12111024533 is an apocalyptic number.

It is an amenable number.

12111024533 is a deficient number, since it is larger than the sum of its proper divisors (6078775).

12111024533 is an equidigital number, since it uses as much as digits as its factorization.

12111024533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6078774.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 12111024533 its reverse (33542011121), we get a palindrome (45653035654).

The spelling of 12111024533 in words is "twelve billion, one hundred eleven million, twenty-four thousand, five hundred thirty-three".