21333110411 has 8 divisors (see below), whose sum is σ = 21666235344. Its totient is φ = 21000418560.

The previous prime is 21333110371. The next prime is 21333110417. The reversal of 21333110411 is 11401133312.

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

It is a cyclic number.

It is not a de Polignac number, because 21333110411 - 2⁶ = 21333110347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21333110417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8270 + ... + 206723.

It is an arithmetic number, because the mean of its divisors is an integer number (2708279418).

Almost surely, 2^21333110411 is an apocalyptic number.

21333110411 is a deficient number, since it is larger than the sum of its proper divisors (333124933).

21333110411 is a wasteful number, since it uses less digits than its factorization.

21333110411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216541.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21333110411 its reverse (11401133312), we get a palindrome (32734243723).

The spelling of 21333110411 in words is "twenty-one billion, three hundred thirty-three million, one hundred ten thousand, four hundred eleven".