21332100132305 has 8 divisors (see below), whose sum is σ = 25862422429032. Its totient is φ = 16889745259008.

The previous prime is 21332100132289. The next prime is 21332100132361. The reversal of 21332100132305 is 50323100123312.

It can be written as a sum of positive squares in 4 ways, for example, as 34973488144 + 21297126644161 = 187012^2 + 4614881^2 .

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 21332100132305 - 2⁴ = 21332100132289 is a prime.

It is a super-2 number, since 2×21332100132305² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21991855322 + ... + 21991856291.

It is an arithmetic number, because the mean of its divisors is an integer number (3232802803629).

Almost surely, 2^{21332100132305} is an apocalyptic number.

It is an amenable number.

21332100132305 is a deficient number, since it is larger than the sum of its proper divisors (4530322296727).

21332100132305 is an equidigital number, since it uses as much as digits as its factorization.

21332100132305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43983711715.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 21332100132305 its reverse (50323100123312), we get a palindrome (71655200255617).

The spelling of 21332100132305 in words is "twenty-one trillion, three hundred thirty-two billion, one hundred million, one hundred thirty-two thousand, three hundred five".