21033410411 has 16 divisors (see below), whose sum is σ = 22804467840. Its totient is φ = 19284447360.

The previous prime is 21033410371. The next prime is 21033410413. The reversal of 21033410411 is 11401433012.

It is a cyclic number.

It is not a de Polignac number, because 21033410411 - 2²⁶ = 20966301547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21033410413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2652110 + ... + 2660028.

It is an arithmetic number, because the mean of its divisors is an integer number (1425279240).

Almost surely, 2^21033410411 is an apocalyptic number.

21033410411 is a deficient number, since it is larger than the sum of its proper divisors (1771057429).

21033410411 is a wasteful number, since it uses less digits than its factorization.

21033410411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9286.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21033410411 its reverse (11401433012), we get a palindrome (32434843423).

The spelling of 21033410411 in words is "twenty-one billion, thirty-three million, four hundred ten thousand, four hundred eleven".