20133100232 has 128 divisors (see below), whose sum is σ = 46014013440. Its totient is φ = 8072655360.

The previous prime is 20133100231. The next prime is 20133100243. The reversal of 20133100232 is 23200133102.

It is a self number, because there is not a number n which added to its sum of digits gives 20133100232.

It is not an unprimeable number, because it can be changed into a prime (20133100231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12527573 + ... + 12529179.

It is an arithmetic number, because the mean of its divisors is an integer number (359484480).

Almost surely, 2^20133100232 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 20133100232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23007006720).

20133100232 is an abundant number, since it is smaller than the sum of its proper divisors (25880913208).

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

20133100232 is a wasteful number, since it uses less digits than its factorization.

20133100232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851 (or 1847 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20133100232 its reverse (23200133102), we get a palindrome (43333233334).

The spelling of 20133100232 in words is "twenty billion, one hundred thirty-three million, one hundred thousand, two hundred thirty-two".