20031132233 has 12 divisors (see below), whose sum is σ = 23629715712. Its totient is φ = 16927714440.

The previous prime is 20031132217. The next prime is 20031132257. The reversal of 20031132233 is 33223113002.

It is not a de Polignac number, because 20031132233 - 2⁴ = 20031132217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20031132533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2875385 + ... + 2882342.

It is an arithmetic number, because the mean of its divisors is an integer number (1969142976).

Almost surely, 2^20031132233 is an apocalyptic number.

It is an amenable number.

20031132233 is a deficient number, since it is larger than the sum of its proper divisors (3598583479).

20031132233 is an equidigital number, since it uses as much as digits as its factorization.

20031132233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5757812 (or 5757805 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20031132233 its reverse (33223113002), we get a palindrome (53254245235).

The spelling of 20031132233 in words is "twenty billion, thirty-one million, one hundred thirty-two thousand, two hundred thirty-three".