20003404133 has 4 divisors (see below), whose sum is σ = 20107048908. Its totient is φ = 19899759360.

The previous prime is 20003404081. The next prime is 20003404139. The reversal of 20003404133 is 33140430002.

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 13965803329 + 6037600804 = 118177^2 + 77702^2 .

It is a cyclic number.

It is not a de Polignac number, because 20003404133 - 2¹⁴ = 20003387749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003404139) 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, 51822098 + ... + 51822483.

It is an arithmetic number, because the mean of its divisors is an integer number (5026762227).

Almost surely, 2^20003404133 is an apocalyptic number.

It is an amenable number.

20003404133 is a deficient number, since it is larger than the sum of its proper divisors (103644775).

20003404133 is a wasteful number, since it uses less digits than its factorization.

20003404133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103644774.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20003404133 its reverse (33140430002), we get a palindrome (53143834135).

The spelling of 20003404133 in words is "twenty billion, three million, four hundred four thousand, one hundred thirty-three".