133320001321 has 32 divisors (see below), whose sum is σ = 147733279232. Its totient is φ = 119534849280.

The previous prime is 133320001273. The next prime is 133320001349. The reversal of 133320001321 is 123100023331.

It is a cyclic number.

It is not a de Polignac number, because 133320001321 - 2²⁵ = 133286446889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133320007321) 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, 96538051 + ... + 96539431.

It is an arithmetic number, because the mean of its divisors is an integer number (4616664976).

Almost surely, 2^133320001321 is an apocalyptic number.

It is an amenable number.

133320001321 is a deficient number, since it is larger than the sum of its proper divisors (14413277911).

133320001321 is a wasteful number, since it uses less digits than its factorization.

133320001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 133320001321 its reverse (123100023331), we get a palindrome (256420024652).

The spelling of 133320001321 in words is "one hundred thirty-three billion, three hundred twenty million, one thousand, three hundred twenty-one".