20133104111 has 4 divisors (see below), whose sum is σ = 20133387912. Its totient is φ = 20132820312.

The previous prime is 20133104081. The next prime is 20133104143. The reversal of 20133104111 is 11140133102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20133104111 - 2¹⁰ = 20133103087 is a prime.

It is a super-2 number, since 2×20133104111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20133104111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133104171) 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 3 ways as a sum of consecutive naturals, for example, 68576 + ... + 212058.

It is an arithmetic number, because the mean of its divisors is an integer number (5033346978).

Almost surely, 2^20133104111 is an apocalyptic number.

20133104111 is a deficient number, since it is larger than the sum of its proper divisors (283801).

20133104111 is a wasteful number, since it uses less digits than its factorization.

20133104111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283800.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20133104111 its reverse (11140133102), we get a palindrome (31273237213).

The spelling of 20133104111 in words is "twenty billion, one hundred thirty-three million, one hundred four thousand, one hundred eleven".