20001031202230 has 32 divisors (see below), whose sum is σ = 41051890291104. Its totient is φ = 6950584598016.

The previous prime is 20001031202189. The next prime is 20001031202237. The reversal of 20001031202230 is 3220213010002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001031202237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4525117972 + ... + 4525122391.

It is an arithmetic number, because the mean of its divisors is an integer number (1282871571597).

Almost surely, 2^{20001031202230} is an apocalyptic number.

20001031202230 is an abundant number, since it is smaller than the sum of its proper divisors (21050859088874).

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

20001031202230 is a wasteful number, since it uses less digits than its factorization.

20001031202230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9050240400.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20001031202230 its reverse (3220213010002), we get a palindrome (23221244212232).

The spelling of 20001031202230 in words is "twenty trillion, one billion, thirty-one million, two hundred two thousand, two hundred thirty".