2001310103 has 4 divisors (see below), whose sum is σ = 2155257048. Its totient is φ = 1847363160.

The previous prime is 2001310093. The next prime is 2001310139. The reversal of 2001310103 is 3010131002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2001310103 - 2⁸ = 2001309847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001310153) 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 3 ways as a sum of consecutive naturals, for example, 76973453 + ... + 76973478.

It is an arithmetic number, because the mean of its divisors is an integer number (538814262).

Almost surely, 2^2001310103 is an apocalyptic number.

2001310103 is a deficient number, since it is larger than the sum of its proper divisors (153946945).

2001310103 is a wasteful number, since it uses less digits than its factorization.

2001310103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153946944.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 2001310103 is about 44736.0045489089. The cubic root of 2001310103 is about 1260.1960942387.

Adding to 2001310103 its reverse (3010131002), we get a palindrome (5011441105).

The spelling of 2001310103 in words is "two billion, one million, three hundred ten thousand, one hundred three".