21033300411 has 24 divisors (see below), whose sum is σ = 30777344000. Its totient is φ = 13839604272.

The previous prime is 21033300377. The next prime is 21033300427. The reversal of 21033300411 is 11400333012.

It is not a de Polignac number, because 21033300411 - 2⁶ = 21033300347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21033300451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3636720 + ... + 3642498.

Almost surely, 2^21033300411 is an apocalyptic number.

21033300411 is a deficient number, since it is larger than the sum of its proper divisors (9744043589).

21033300411 is a wasteful number, since it uses less digits than its factorization.

21033300411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10983 (or 10980 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21033300411 its reverse (11400333012), we get a palindrome (32433633423).

The spelling of 21033300411 in words is "twenty-one billion, thirty-three million, three hundred thousand, four hundred eleven".