20001133333 has 4 divisors (see below), whose sum is σ = 20017788268. Its totient is φ = 19984478400.

The previous prime is 20001133331. The next prime is 20001133379. The reversal of 20001133333 is 33333110002.

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 17918289 + 19983215044 = 4233^2 + 141362^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001133333 - 2¹ = 20001133331 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 20001133333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001133331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8325666 + ... + 8328067.

It is an arithmetic number, because the mean of its divisors is an integer number (5004447067).

Almost surely, 2^20001133333 is an apocalyptic number.

It is an amenable number.

20001133333 is a deficient number, since it is larger than the sum of its proper divisors (16654935).

20001133333 is a wasteful number, since it uses less digits than its factorization.

20001133333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16654934.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 20001133333 its reverse (33333110002), we get a palindrome (53334243335).

The spelling of 20001133333 in words is "twenty billion, one million, one hundred thirty-three thousand, three hundred thirty-three".