20133004033 has 4 divisors (see below), whose sum is σ = 20782455808. Its totient is φ = 19483552260.

The previous prime is 20133003959. The next prime is 20133004037. The reversal of 20133004033 is 33040033102.

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 a de Polignac number, because none of the positive numbers 2^k-20133004033 is a prime.

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 20133004033.

It is not an unprimeable number, because it can be changed into a prime (20133004037) 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, 324725841 + ... + 324725902.

It is an arithmetic number, because the mean of its divisors is an integer number (5195613952).

Almost surely, 2^20133004033 is an apocalyptic number.

It is an amenable number.

20133004033 is a deficient number, since it is larger than the sum of its proper divisors (649451775).

20133004033 is an equidigital number, since it uses as much as digits as its factorization.

20133004033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649451774.

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

Adding to 20133004033 its reverse (33040033102), we get a palindrome (53173037135).

The spelling of 20133004033 in words is "twenty billion, one hundred thirty-three million, four thousand, thirty-three".