21106473411 has 16 divisors (see below), whose sum is σ = 30312806400. Its totient is φ = 13025031360.

The previous prime is 21106473407. The next prime is 21106473413. The reversal of 21106473411 is 11437460112.

It is not a de Polignac number, because 21106473411 - 2² = 21106473407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21106473413) 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, 4931586 + ... + 4935863.

It is an arithmetic number, because the mean of its divisors is an integer number (1894550400).

Almost surely, 2^21106473411 is an apocalyptic number.

21106473411 is a deficient number, since it is larger than the sum of its proper divisors (9206332989).

21106473411 is a wasteful number, since it uses less digits than its factorization.

21106473411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9867506.

The product of its (nonzero) digits is 4032, while the sum is 30.

The spelling of 21106473411 in words is "twenty-one billion, one hundred six million, four hundred seventy-three thousand, four hundred eleven".