20335133321 has 4 divisors (see below), whose sum is σ = 21531317652. Its totient is φ = 19138948992.

The previous prime is 20335133309. The next prime is 20335133327. The reversal of 20335133321 is 12333153302.

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 15759287296 + 4575846025 = 125536^2 + 67645^2 .

It is a cyclic number.

It is not a de Polignac number, because 20335133321 - 2⁶ = 20335133257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20335133327) 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, 598092140 + ... + 598092173.

It is an arithmetic number, because the mean of its divisors is an integer number (5382829413).

Almost surely, 2^20335133321 is an apocalyptic number.

It is an amenable number.

20335133321 is a deficient number, since it is larger than the sum of its proper divisors (1196184331).

20335133321 is a wasteful number, since it uses less digits than its factorization.

20335133321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196184330.

The product of its (nonzero) digits is 4860, while the sum is 26.

Adding to 20335133321 its reverse (12333153302), we get a palindrome (32668286623).

The spelling of 20335133321 in words is "twenty billion, three hundred thirty-five million, one hundred thirty-three thousand, three hundred twenty-one".