12023321033 has 4 divisors (see below), whose sum is σ = 12437918340. Its totient is φ = 11608723728.

The previous prime is 12023321021. The next prime is 12023321039. The reversal of 12023321033 is 33012332021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9909804304 + 2113516729 = 99548^2 + 45973^2 .

It is a cyclic number.

It is not a de Polignac number, because 12023321033 - 2⁴ = 12023321017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12023320996 and 12023321014.

It is not an unprimeable number, because it can be changed into a prime (12023321039) 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, 207298610 + ... + 207298667.

It is an arithmetic number, because the mean of its divisors is an integer number (3109479585).

Almost surely, 2^12023321033 is an apocalyptic number.

It is an amenable number.

12023321033 is a deficient number, since it is larger than the sum of its proper divisors (414597307).

12023321033 is an equidigital number, since it uses as much as digits as its factorization.

12023321033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414597306.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 12023321033 its reverse (33012332021), we get a palindrome (45035653054).

The spelling of 12023321033 in words is "twelve billion, twenty-three million, three hundred twenty-one thousand, thirty-three".