133123021112 has 16 divisors (see below), whose sum is σ = 250788633000. Its totient is φ = 66246052320.

The previous prime is 133123021111. The next prime is 133123021123. The reversal of 133123021112 is 211120321331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133123021111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39430487 + ... + 39433862.

Almost surely, 2^133123021112 is an apocalyptic number.

It is an amenable number.

133123021112 is a deficient number, since it is larger than the sum of its proper divisors (117665611888).

133123021112 is a wasteful number, since it uses less digits than its factorization.

133123021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78864566 (or 78864562 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 133123021112 its reverse (211120321331), we get a palindrome (344243342443).

The spelling of 133123021112 in words is "one hundred thirty-three billion, one hundred twenty-three million, twenty-one thousand, one hundred twelve".