20133111112 has 16 divisors (see below), whose sum is σ = 37751145840. Its totient is φ = 10066138896.

The previous prime is 20133111091. The next prime is 20133111121. The reversal of 20133111112 is 21111133102.

It is a happy number.

It is an unprimeable number.

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, 271623 + ... + 337705.

It is an arithmetic number, because the mean of its divisors is an integer number (2359446615).

Almost surely, 2^20133111112 is an apocalyptic number.

It is an amenable number.

20133111112 is a deficient number, since it is larger than the sum of its proper divisors (17618034728).

20133111112 is a wasteful number, since it uses less digits than its factorization.

20133111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104172 (or 104168 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20133111112 its reverse (21111133102), we get a palindrome (41244244214).

The spelling of 20133111112 in words is "twenty billion, one hundred thirty-three million, one hundred eleven thousand, one hundred twelve".