2001320113 has 8 divisors (see below), whose sum is σ = 2201125248. Its totient is φ = 1808066064.

The previous prime is 2001320107. The next prime is 2001320119. The reversal of 2001320113 is 3110231002.

It is an interprime number because it is at equal distance from previous prime (2001320107) and next prime (2001320119).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001320113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001320093 and 2001320102.

It is not an unprimeable number, because it can be changed into a prime (2001320119) 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 7 ways as a sum of consecutive naturals, for example, 1637131 + ... + 1638352.

It is an arithmetic number, because the mean of its divisors is an integer number (275140656).

Almost surely, 2^2001320113 is an apocalyptic number.

It is an amenable number.

2001320113 is a deficient number, since it is larger than the sum of its proper divisors (199805135).

2001320113 is a wasteful number, since it uses less digits than its factorization.

2001320113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275543.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2001320113 is about 44736.1164273342. The cubic root of 2001320113 is about 1260.1981952861.

Adding to 2001320113 its reverse (3110231002), we get a palindrome (5111551115).

The spelling of 2001320113 in words is "two billion, one million, three hundred twenty thousand, one hundred thirteen".