21331410105 has 32 divisors (see below), whose sum is σ = 35995530240. Its totient is φ = 10757292480.

The previous prime is 21331410101. The next prime is 21331410119. The reversal of 21331410105 is 50101413312.

It is not a de Polignac number, because 21331410105 - 2² = 21331410101 is a prime.

It is a super-2 number, since 2×21331410105² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21331410101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77500 + ... + 220610.

It is an arithmetic number, because the mean of its divisors is an integer number (1124860320).

Almost surely, 2^21331410105 is an apocalyptic number.

It is an amenable number.

21331410105 is a deficient number, since it is larger than the sum of its proper divisors (14664120135).

21331410105 is a wasteful number, since it uses less digits than its factorization.

21331410105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143661.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 21331410105 its reverse (50101413312), we get a palindrome (71432823417).

The spelling of 21331410105 in words is "twenty-one billion, three hundred thirty-one million, four hundred ten thousand, one hundred five".