2001113 has 4 divisors (see below), whose sum is σ = 2021028. Its totient is φ = 1981200.

The previous prime is 2001101. The next prime is 2001127. The reversal of 2001113 is 3111002.

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 851929 + 1149184 = 923^2 + 1072^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001113 - 2⁶ = 2001049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001163) 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 3 ways as a sum of consecutive naturals, for example, 9806 + ... + 10007.

It is an arithmetic number, because the mean of its divisors is an integer number (505257).

2^2001113 is an apocalyptic number.

It is an amenable number.

2001113 is a deficient number, since it is larger than the sum of its proper divisors (19915).

2001113 is a wasteful number, since it uses less digits than its factorization.

2001113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19914.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 2001113 is about 1414.6070125657. The cubic root of 2001113 is about 126.0154721909.

Adding to 2001113 its reverse (3111002), we get a palindrome (5112115).

The spelling of 2001113 in words is "two million, one thousand, one hundred thirteen".