20303213110020 has 144 divisors (see below), whose sum is σ = 64596675806208. Its totient is φ = 5155778476800.

The previous prime is 20303213110007. The next prime is 20303213110021. The reversal of 20303213110020 is 2001131230302.

20303213110020 is a `hidden beast` number, since 2 + 0 + 30 + 321 + 311 + 0 + 0 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20303213109975 and 20303213110002.

It is not an unprimeable number, because it can be changed into a prime (20303213110021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32118156 + ... + 32744195.

It is an arithmetic number, because the mean of its divisors is an integer number (448588026432).

Almost surely, 2^{20303213110020} is an apocalyptic number.

20303213110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20303213110020 is an abundant number, since it is smaller than the sum of its proper divisors (44293462696188).

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

20303213110020 is a wasteful number, since it uses less digits than its factorization.

20303213110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64862450 (or 64862445 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20303213110020 its reverse (2001131230302), we get a palindrome (22304344340322).

The spelling of 20303213110020 in words is "twenty trillion, three hundred three billion, two hundred thirteen million, one hundred ten thousand, twenty".