133432330321 has 8 divisors (see below), whose sum is σ = 137092390344. Its totient is φ = 129791585280.

The previous prime is 133432330309. The next prime is 133432330333. The reversal of 133432330321 is 123033234331.

It is an interprime number because it is at equal distance from previous prime (133432330309) and next prime (133432330333).

It can be written as a sum of positive squares in 4 ways, for example, as 2794179600 + 130638150721 = 52860^2 + 361439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133432330321 - 2⁷ = 133432330193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133432330321.

It is not an unprimeable number, because it can be changed into a prime (133432330301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4814740 + ... + 4842373.

It is an arithmetic number, because the mean of its divisors is an integer number (17136548793).

Almost surely, 2^133432330321 is an apocalyptic number.

It is an amenable number.

133432330321 is a deficient number, since it is larger than the sum of its proper divisors (3660060023).

133432330321 is an equidigital number, since it uses as much as digits as its factorization.

133432330321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9657491.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 133432330321 its reverse (123033234331), we get a palindrome (256465564652).

The spelling of 133432330321 in words is "one hundred thirty-three billion, four hundred thirty-two million, three hundred thirty thousand, three hundred twenty-one".