21100303411 has 16 divisors (see below), whose sum is σ = 23075631360. Its totient is φ = 19134571680.

The previous prime is 21100303373. The next prime is 21100303447. The reversal of 21100303411 is 11430300112.

It is a cyclic number.

It is not a de Polignac number, because 21100303411 - 2²⁵ = 21066748979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21100303711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13211665 + ... + 13213261.

It is an arithmetic number, because the mean of its divisors is an integer number (1442226960).

Almost surely, 2^21100303411 is an apocalyptic number.

21100303411 is a deficient number, since it is larger than the sum of its proper divisors (1975327949).

21100303411 is a wasteful number, since it uses less digits than its factorization.

21100303411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21100303411 its reverse (11430300112), we get a palindrome (32530603523).

The spelling of 21100303411 in words is "twenty-one billion, one hundred million, three hundred three thousand, four hundred eleven".