133312011302321 has 4 divisors (see below), whose sum is σ = 133737928271652. Its totient is φ = 132886094332992.

The previous prime is 133312011302317. The next prime is 133312011302339. The reversal of 133312011302321 is 123203110213331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4422878188096 + 128889133114225 = 2103064^2 + 11352935^2 .

It is a cyclic number.

It is not a de Polignac number, because 133312011302321 - 2² = 133312011302317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133312011302221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212958484196 + ... + 212958484821.

It is an arithmetic number, because the mean of its divisors is an integer number (33434482067913).

Almost surely, 2^{133312011302321} is an apocalyptic number.

It is an amenable number.

133312011302321 is a deficient number, since it is larger than the sum of its proper divisors (425916969331).

133312011302321 is an equidigital number, since it uses as much as digits as its factorization.

133312011302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425916969330.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 133312011302321 its reverse (123203110213331), we get a palindrome (256515121515652).

The spelling of 133312011302321 in words is "one hundred thirty-three trillion, three hundred twelve billion, eleven million, three hundred two thousand, three hundred twenty-one".