20031332230 has 32 divisors (see below), whose sum is σ = 44377107264. Its totient is φ = 6339586176.

The previous prime is 20031332221. The next prime is 20031332257. The reversal of 20031332230 is 3223313002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20031332198 and 20031332207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11005317 + ... + 11007136.

It is an arithmetic number, because the mean of its divisors is an integer number (1386784602).

Almost surely, 2^20031332230 is an apocalyptic number.

20031332230 is an abundant number, since it is smaller than the sum of its proper divisors (24345775034).

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

20031332230 is a wasteful number, since it uses less digits than its factorization.

20031332230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22012480.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20031332230 its reverse (3223313002), we get a palindrome (23254645232).

The spelling of 20031332230 in words is "twenty billion, thirty-one million, three hundred thirty-two thousand, two hundred thirty".