201321201133 has 4 divisors (see below), whose sum is σ = 216807447388. Its totient is φ = 185834954880.

The previous prime is 201321201127. The next prime is 201321201143. The reversal of 201321201133 is 331102123102.

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 134631754084 + 66689447049 = 366922^2 + 258243^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201321201133 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 201321201133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201321201143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7743123108 + ... + 7743123133.

It is an arithmetic number, because the mean of its divisors is an integer number (54201861847).

Almost surely, 2^201321201133 is an apocalyptic number.

It is an amenable number.

201321201133 is a deficient number, since it is larger than the sum of its proper divisors (15486246255).

201321201133 is a wasteful number, since it uses less digits than its factorization.

201321201133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15486246254.

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

Adding to 201321201133 its reverse (331102123102), we get a palindrome (532423324235).

The spelling of 201321201133 in words is "two hundred one billion, three hundred twenty-one million, two hundred one thousand, one hundred thirty-three".