20004305133 has 8 divisors (see below), whose sum is σ = 26673444448. Its totient is φ = 13335684624.

The previous prime is 20004305129. The next prime is 20004305143. The reversal of 20004305133 is 33150340002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20004305133 - 2² = 20004305129 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 (20004305143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28435 + ... + 202032.

It is an arithmetic number, because the mean of its divisors is an integer number (3334180556).

Almost surely, 2^20004305133 is an apocalyptic number.

It is an amenable number.

20004305133 is a deficient number, since it is larger than the sum of its proper divisors (6669139315).

20004305133 is a wasteful number, since it uses less digits than its factorization.

20004305133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259403.

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 20004305133 its reverse (33150340002), we get a palindrome (53154645135).

The spelling of 20004305133 in words is "twenty billion, four million, three hundred five thousand, one hundred thirty-three".