201120013 has 6 divisors (see below), whose sum is σ = 213646826. Its totient is φ = 189289152.

The previous prime is 201119969. The next prime is 201120041. The reversal of 201120013 is 310021102.

It can be written as a sum of positive squares in 3 ways, for example, as 152720164 + 48399849 = 12358^2 + 6957^2 .

It is not a de Polignac number, because 201120013 - 2¹³ = 201111821 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 (201120113) 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 5 ways as a sum of consecutive naturals, for example, 347670 + ... + 348247.

Almost surely, 2^201120013 is an apocalyptic number.

It is an amenable number.

201120013 is a deficient number, since it is larger than the sum of its proper divisors (12526813).

201120013 is an equidigital number, since it uses as much as digits as its factorization.

201120013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695951 (or 695934 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 201120013 is about 14181.6787793265. The cubic root of 201120013 is about 585.8931621557.

Adding to 201120013 its reverse (310021102), we get a palindrome (511141115).

The spelling of 201120013 in words is "two hundred one million, one hundred twenty thousand, thirteen".