201133213 has 4 divisors (see below), whose sum is σ = 202175548. Its totient is φ = 200090880.

The previous prime is 201133193. The next prime is 201133217. The reversal of 201133213 is 312331102.

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 67453369 + 133679844 = 8213^2 + 11562^2 .

It is a cyclic number.

It is not a de Polignac number, because 201133213 - 2¹⁷ = 201002141 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 (201133217) 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, 520878 + ... + 521263.

It is an arithmetic number, because the mean of its divisors is an integer number (50543887).

Almost surely, 2^201133213 is an apocalyptic number.

It is an amenable number.

201133213 is a deficient number, since it is larger than the sum of its proper divisors (1042335).

201133213 is a wasteful number, since it uses less digits than its factorization.

201133213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042334.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 201133213 is about 14182.1441608806. The cubic root of 201133213 is about 585.9059797439.

Adding to 201133213 its reverse (312331102), we get a palindrome (513464315).

The spelling of 201133213 in words is "two hundred one million, one hundred thirty-three thousand, two hundred thirteen".