2131113 has 4 divisors (see below), whose sum is σ = 2841488. Its totient is φ = 1420740.

The previous prime is 2131109. The next prime is 2131127. The reversal of 2131113 is 3111312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2131113 - 2² = 2131109 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355183 + ... + 355188.

It is an arithmetic number, because the mean of its divisors is an integer number (710372).

2^2131113 is an apocalyptic number.

It is an amenable number.

2131113 is a deficient number, since it is larger than the sum of its proper divisors (710375).

2131113 is an equidigital number, since it uses as much as digits as its factorization.

2131113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710374.

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

The square root of 2131113 is about 1459.8332096510. The cubic root of 2131113 is about 128.6872418557.

Adding to 2131113 its reverse (3111312), we get a palindrome (5242425).

It can be divided in two parts, 213 and 1113, that added together give a triangular number (1326 = T₅₁).

The spelling of 2131113 in words is "two million, one hundred thirty-one thousand, one hundred thirteen".