201321130133 has 4 divisors (see below), whose sum is σ = 201405261708. Its totient is φ = 201236998560.

The previous prime is 201321130103. The next prime is 201321130177. The reversal of 201321130133 is 331031123102.

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 6316752484 + 195004377649 = 79478^2 + 441593^2 .

It is a cyclic number.

It is not a de Polignac number, because 201321130133 - 2¹⁰ = 201321129109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201321130103) 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, 42062198 + ... + 42066983.

It is an arithmetic number, because the mean of its divisors is an integer number (50351315427).

Almost surely, 2^201321130133 is an apocalyptic number.

It is an amenable number.

201321130133 is a deficient number, since it is larger than the sum of its proper divisors (84131575).

201321130133 is an equidigital number, since it uses as much as digits as its factorization.

201321130133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84131574.

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

Adding to 201321130133 its reverse (331031123102), we get a palindrome (532352253235).

The spelling of 201321130133 in words is "two hundred one billion, three hundred twenty-one million, one hundred thirty thousand, one hundred thirty-three".