201133021321 has 4 divisors (see below), whose sum is σ = 201134852100. Its totient is φ = 201131190544.

The previous prime is 201133021319. The next prime is 201133021339. The reversal of 201133021321 is 123120331102.

201133021321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 130595504400 + 70537516921 = 361380^2 + 265589^2 .

It is a cyclic number.

It is not a de Polignac number, because 201133021321 - 2¹ = 201133021319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201133021381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739306 + ... + 974083.

It is an arithmetic number, because the mean of its divisors is an integer number (50283713025).

Almost surely, 2^201133021321 is an apocalyptic number.

It is an amenable number.

201133021321 is a deficient number, since it is larger than the sum of its proper divisors (1830779).

201133021321 is a wasteful number, since it uses less digits than its factorization.

201133021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830778.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201133021321 its reverse (123120331102), we get a palindrome (324253352423).

The spelling of 201133021321 in words is "two hundred one billion, one hundred thirty-three million, twenty-one thousand, three hundred twenty-one".