20133321030 has 48 divisors (see below), whose sum is σ = 52407916704. Its totient is φ = 5362600320.

The previous prime is 20133320989. The next prime is 20133321031. The reversal of 20133321030 is 3012333102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20133320994 and 20133321012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133321031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53386 + ... + 207645.

It is an arithmetic number, because the mean of its divisors is an integer number (1091831598).

Almost surely, 2^20133321030 is an apocalyptic number.

20133321030 is an abundant number, since it is smaller than the sum of its proper divisors (32274595674).

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

20133321030 is a wasteful number, since it uses less digits than its factorization.

20133321030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261901 (or 261898 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20133321030 its reverse (3012333102), we get a palindrome (23145654132).

The spelling of 20133321030 in words is "twenty billion, one hundred thirty-three million, three hundred twenty-one thousand, thirty".