21445021320314 has 24 divisors (see below), whose sum is σ = 33852612849300. Its totient is φ = 10187480143808.

The previous prime is 21445021320313. The next prime is 21445021320353. The reversal of 21445021320314 is 41302312054412.

It can be written as a sum of positive squares in 2 ways, for example, as 20277504333025 + 1167516987289 = 4503055^2 + 1080517^2 .

It is a super-3 number, since 3×21445021320314³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21445021320313) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 67860467 + ... + 68175750.

Almost surely, 2^{21445021320314} is an apocalyptic number.

21445021320314 is a deficient number, since it is larger than the sum of its proper divisors (12407591528986).

21445021320314 is a wasteful number, since it uses less digits than its factorization.

21445021320314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136036414 (or 136036391 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 21445021320314 its reverse (41302312054412), we get a palindrome (62747333374726).

The spelling of 21445021320314 in words is "twenty-one trillion, four hundred forty-five billion, twenty-one million, three hundred twenty thousand, three hundred fourteen".