133201013321 has 4 divisors (see below), whose sum is σ = 133388885700. Its totient is φ = 133013140944.

The previous prime is 133201013299. The next prime is 133201013333. The reversal of 133201013321 is 123310102331.

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 14545566025 + 118655447296 = 120605^2 + 344464^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133201013321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133201013293 and 133201013302.

It is not an unprimeable number, because it can be changed into a prime (133201013021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93935126 + ... + 93936543.

It is an arithmetic number, because the mean of its divisors is an integer number (33347221425).

Almost surely, 2^133201013321 is an apocalyptic number.

It is an amenable number.

133201013321 is a deficient number, since it is larger than the sum of its proper divisors (187872379).

133201013321 is an equidigital number, since it uses as much as digits as its factorization.

133201013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187872378.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 133201013321 its reverse (123310102331), we get a palindrome (256511115652).

The spelling of 133201013321 in words is "one hundred thirty-three billion, two hundred one million, thirteen thousand, three hundred twenty-one".