12113021033 has 4 divisors (see below), whose sum is σ = 12825551700. Its totient is φ = 11400490368.

The previous prime is 12113021029. The next prime is 12113021059. The reversal of 12113021033 is 33012031121.

12113021033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33012031121 = 233 ⋅141682537.

It can be written as a sum of positive squares in 2 ways, for example, as 11374649104 + 738371929 = 106652^2 + 27173^2 .

It is a cyclic number.

It is not a de Polignac number, because 12113021033 - 2² = 12113021029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 712530649 = 12113021033 / (1 + 2 + 1 + 1 + 3 + 0 + 2 + 1 + 0 + 3 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12113021023) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 356265308 + ... + 356265341.

It is an arithmetic number, because the mean of its divisors is an integer number (3206387925).

Almost surely, 2^12113021033 is an apocalyptic number.

It is an amenable number.

12113021033 is a deficient number, since it is larger than the sum of its proper divisors (712530667).

12113021033 is an equidigital number, since it uses as much as digits as its factorization.

12113021033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712530666.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12113021033 its reverse (33012031121), we get a palindrome (45125052154).

The spelling of 12113021033 in words is "twelve billion, one hundred thirteen million, twenty-one thousand, thirty-three".