20133111132 has 216 divisors, whose sum is σ = 55733932800. Its totient is φ = 6109152192.

The previous prime is 20133111121. The next prime is 20133111161. The reversal of 20133111132 is 23111133102.

20133111132 is a `hidden beast` number, since 201 + 331 + 1 + 1 + 132 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 242567563 + ... + 242567645.

Almost surely, 2^20133111132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20133111132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27866966400).

20133111132 is an abundant number, since it is smaller than the sum of its proper divisors (35600821668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20133111132 is a wasteful number, since it uses less digits than its factorization.

20133111132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20133111132 its reverse (23111133102), we get a palindrome (43244244234).

The spelling of 20133111132 in words is "twenty billion, one hundred thirty-three million, one hundred eleven thousand, one hundred thirty-two".