20102313210220 has 24 divisors (see below), whose sum is σ = 42400826287344. Its totient is φ = 8005502703936.

The previous prime is 20102313210163. The next prime is 20102313210223. The reversal of 20102313210220 is 2201231320102.

It is not an unprimeable number, because it can be changed into a prime (20102313210223) 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, 2213906607 + ... + 2213915686.

It is an arithmetic number, because the mean of its divisors is an integer number (1766701095306).

Almost surely, 2^{20102313210220} is an apocalyptic number.

20102313210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102313210220 is an abundant number, since it is smaller than the sum of its proper divisors (22298513077124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20102313210220 is a wasteful number, since it uses less digits than its factorization.

20102313210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427822529 (or 4427822527 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20102313210220 its reverse (2201231320102), we get a palindrome (22303544530322).

The spelling of 20102313210220 in words is "twenty trillion, one hundred two billion, three hundred thirteen million, two hundred ten thousand, two hundred twenty".