2113131 has 8 divisors (see below), whose sum is σ = 2856400. Its totient is φ = 1389312.

The previous prime is 2113129. The next prime is 2113147. The reversal of 2113131 is 1313112.

2113131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2113131 - 2¹ = 2113129 is a prime.

It is a super-2 number, since 2×2113131² = 8930645246322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4606 + ... + 5043.

It is an arithmetic number, because the mean of its divisors is an integer number (357050).

2^2113131 is an apocalyptic number.

2113131 is a deficient number, since it is larger than the sum of its proper divisors (743269).

2113131 is an equidigital number, since it uses as much as digits as its factorization.

2113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9725.

The product of its digits is 18, while the sum is 12.

The square root of 2113131 is about 1453.6612397667. The cubic root of 2113131 is about 128.3242713940.

Adding to 2113131 its reverse (1313112), we get a palindrome (3426243).

The spelling of 2113131 in words is "two million, one hundred thirteen thousand, one hundred thirty-one".