20112133323321 has 48 divisors (see below), whose sum is σ = 31800458307072. Its totient is φ = 12173019811200.

The previous prime is 20112133323313. The next prime is 20112133323323. The reversal of 20112133323321 is 12332333121102.

20112133323321 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 2 + 1 + 3 + 332 + 3 + 321 = 666.

It is not a de Polignac number, because 20112133323321 - 2³ = 20112133323313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20112133323323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122895876 + ... + 123059418.

It is an arithmetic number, because the mean of its divisors is an integer number (662509548064).

Almost surely, 2^{20112133323321} is an apocalyptic number.

It is an amenable number.

20112133323321 is a deficient number, since it is larger than the sum of its proper divisors (11688324983751).

20112133323321 is a wasteful number, since it uses less digits than its factorization.

20112133323321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180854 (or 180851 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 20112133323321 its reverse (12332333121102), we get a palindrome (32444466444423).

The spelling of 20112133323321 in words is "twenty trillion, one hundred twelve billion, one hundred thirty-three million, three hundred twenty-three thousand, three hundred twenty-one".