2001310243 has 8 divisors (see below), whose sum is σ = 2056917312. Its totient is φ = 1946246016.

The previous prime is 2001310229. The next prime is 2001310249. The reversal of 2001310243 is 3420131002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2001310243 - 2²¹ = 1999213091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001310249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128230 + ... + 142987.

It is an arithmetic number, because the mean of its divisors is an integer number (257114664).

Almost surely, 2^2001310243 is an apocalyptic number.

2001310243 is a deficient number, since it is larger than the sum of its proper divisors (55607069).

2001310243 is a wasteful number, since it uses less digits than its factorization.

2001310243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271421.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2001310243 is about 44736.0061136441. The cubic root of 2001310243 is about 1260.1961236241.

Adding to 2001310243 its reverse (3420131002), we get a palindrome (5421441245).

The spelling of 2001310243 in words is "two billion, one million, three hundred ten thousand, two hundred forty-three".