20335133312 has 32 divisors (see below), whose sum is σ = 43627663380. Its totient is φ = 9385445376.

The previous prime is 20335133309. The next prime is 20335133327. The reversal of 20335133312 is 21333153302.

It can be written as a sum of positive squares in 2 ways, for example, as 19876488256 + 458645056 = 140984^2 + 21416^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6108653 + ... + 6111980.

Almost surely, 2^20335133312 is an apocalyptic number.

It is an amenable number.

20335133312 is an abundant number, since it is smaller than the sum of its proper divisors (23292530068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20335133312 is a wasteful number, since it uses less digits than its factorization.

20335133312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12220660 (or 12220648 counting only the distinct ones).

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

Adding to 20335133312 its reverse (21333153302), we get a palindrome (41668286614).

The spelling of 20335133312 in words is "twenty billion, three hundred thirty-five million, one hundred thirty-three thousand, three hundred twelve".