20001320230230 has 48 divisors (see below), whose sum is σ = 52629979998960. Its totient is φ = 5269424122944.

The previous prime is 20001320230189. The next prime is 20001320230247. The reversal of 20001320230230 is 3203202310002.

It is a happy number.

20001320230230 is a `hidden beast` number, since 200 + 0 + 1 + 3 + 2 + 0 + 230 + 230 = 666.

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

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1338768985 + ... + 1338783924.

It is an arithmetic number, because the mean of its divisors is an integer number (1096457916645).

Almost surely, 2^{20001320230230} is an apocalyptic number.

20001320230230 is an abundant number, since it is smaller than the sum of its proper divisors (32628659768730).

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

20001320230230 is a wasteful number, since it uses less digits than its factorization.

20001320230230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677553005 (or 2677553002 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20001320230230 its reverse (3203202310002), we get a palindrome (23204522540232).

The spelling of 20001320230230 in words is "twenty trillion, one billion, three hundred twenty million, two hundred thirty thousand, two hundred thirty".