20112232133 has 12 divisors (see below), whose sum is σ = 23398304832. Its totient is φ = 17237256120.

The previous prime is 20112232093. The next prime is 20112232141. The reversal of 20112232133 is 33123221102.

It is not a de Polignac number, because 20112232133 - 2⁸ = 20112231877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112232333) 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, 693698 + ... + 722108.

It is an arithmetic number, because the mean of its divisors is an integer number (1949858736).

Almost surely, 2^20112232133 is an apocalyptic number.

It is an amenable number.

20112232133 is a deficient number, since it is larger than the sum of its proper divisors (3286072699).

20112232133 is a wasteful number, since it uses less digits than its factorization.

20112232133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42872 (or 42865 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20112232133 its reverse (33123221102), we get a palindrome (53235453235).

The spelling of 20112232133 in words is "twenty billion, one hundred twelve million, two hundred thirty-two thousand, one hundred thirty-three".