20001111232 has 28 divisors (see below), whose sum is σ = 40248724176. Its totient is φ = 9859700480.

The previous prime is 20001111173. The next prime is 20001111233. The reversal of 20001111232 is 23211110002.

It is not an unprimeable number, because it can be changed into a prime (20001111233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2196283 + ... + 2205370.

Almost surely, 2^20001111232 is an apocalyptic number.

It is an amenable number.

20001111232 is an abundant number, since it is smaller than the sum of its proper divisors (20247612944).

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

20001111232 is an equidigital number, since it uses as much as digits as its factorization.

20001111232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401736 (or 4401726 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20001111232 its reverse (23211110002), we get a palindrome (43212221234).

The spelling of 20001111232 in words is "twenty billion, one million, one hundred eleven thousand, two hundred thirty-two".