20321242143110 has 16 divisors (see below), whose sum is σ = 36578308968000. Its totient is φ = 8128480610496.

The previous prime is 20321242143109. The next prime is 20321242143119. The reversal of 20321242143110 is 1134124212302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20321242143110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321242143119) 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 7 ways as a sum of consecutive naturals, for example, 4105346 + ... + 7582634.

It is an arithmetic number, because the mean of its divisors is an integer number (2286144310500).

Almost surely, 2^{20321242143110} is an apocalyptic number.

20321242143110 is a deficient number, since it is larger than the sum of its proper divisors (16257066824890).

20321242143110 is a wasteful number, since it uses less digits than its factorization.

20321242143110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4061695.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 20321242143110 its reverse (1134124212302), we get a palindrome (21455366355412).

The spelling of 20321242143110 in words is "twenty trillion, three hundred twenty-one billion, two hundred forty-two million, one hundred forty-three thousand, one hundred ten".