12000033433 has 4 divisors (see below), whose sum is σ = 12631614160. Its totient is φ = 11368452708.

The previous prime is 12000033379. The next prime is 12000033439. The reversal of 12000033433 is 33433000021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12000033433 - 2⁹ = 12000032921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 631580707 = 12000033433 / (1 + 2 + 0 + 0 + 0 + 0 + 3 + 3 + 4 + 3 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12000033433.

It is not an unprimeable number, because it can be changed into a prime (12000033439) 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, 315790335 + ... + 315790372.

It is an arithmetic number, because the mean of its divisors is an integer number (3157903540).

Almost surely, 2^12000033433 is an apocalyptic number.

It is an amenable number.

12000033433 is a deficient number, since it is larger than the sum of its proper divisors (631580727).

12000033433 is an equidigital number, since it uses as much as digits as its factorization.

12000033433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631580726.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 12000033433 its reverse (33433000021), we get a palindrome (45433033454).

The spelling of 12000033433 in words is "twelve billion, thirty-three thousand, four hundred thirty-three".