21255324143014 has 16 divisors (see below), whose sum is σ = 34338115728000. Its totient is φ = 9809409000960.

The previous prime is 21255324142979. The next prime is 21255324143017. The reversal of 21255324143014 is 41034142355212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21255324143017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30507382 + ... + 31196329.

It is an arithmetic number, because the mean of its divisors is an integer number (2146132233000).

Almost surely, 2^{21255324143014} is an apocalyptic number.

21255324143014 is a deficient number, since it is larger than the sum of its proper divisors (13082791584986).

21255324143014 is a wasteful number, since it uses less digits than its factorization.

21255324143014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61716975.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 21255324143014 its reverse (41034142355212), we get a palindrome (62289466498226).

The spelling of 21255324143014 in words is "twenty-one trillion, two hundred fifty-five billion, three hundred twenty-four million, one hundred forty-three thousand, fourteen".