21033233320011 has 8 divisors (see below), whose sum is σ = 30593793920064. Its totient is φ = 12747414133320.

The previous prime is 21033233319997. The next prime is 21033233320031. The reversal of 21033233320011 is 11002333233012.

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

It is not a de Polignac number, because 21033233320011 - 2²³ = 21033224931403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21033233320031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318685353301 + ... + 318685353366.

It is an arithmetic number, because the mean of its divisors is an integer number (3824224240008).

Almost surely, 2^{21033233320011} is an apocalyptic number.

21033233320011 is a deficient number, since it is larger than the sum of its proper divisors (9560560600053).

21033233320011 is a wasteful number, since it uses less digits than its factorization.

21033233320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637370706681.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21033233320011 its reverse (11002333233012), we get a palindrome (32035566553023).

The spelling of 21033233320011 in words is "twenty-one trillion, thirty-three billion, two hundred thirty-three million, three hundred twenty thousand, eleven".