2133111313 has 4 divisors (see below), whose sum is σ = 2133359140. Its totient is φ = 2132863488.

The previous prime is 2133111307. The next prime is 2133111341. The reversal of 2133111313 is 3131113312.

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 788935744 + 1344175569 = 28088^2 + 36663^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133111313 - 2²¹ = 2131014161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133111353) 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, 110520 + ... + 128377.

It is an arithmetic number, because the mean of its divisors is an integer number (533339785).

Almost surely, 2^2133111313 is an apocalyptic number.

It is an amenable number.

2133111313 is a deficient number, since it is larger than the sum of its proper divisors (247827).

2133111313 is an equidigital number, since it uses as much as digits as its factorization.

2133111313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247826.

The product of its digits is 162, while the sum is 19.

The square root of 2133111313 is about 46185.6180320238. The cubic root of 2133111313 is about 1287.2745199509.

Adding to 2133111313 its reverse (3131113312), we get a palindrome (5264224625).

The spelling of 2133111313 in words is "two billion, one hundred thirty-three million, one hundred eleven thousand, three hundred thirteen".