2001030103 has 4 divisors (see below), whose sum is σ = 2018738448. Its totient is φ = 1983321760.

The previous prime is 2001030091. The next prime is 2001030113. The reversal of 2001030103 is 3010301002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3010301002 = 2 ⋅1505150501.

It is not a de Polignac number, because 2001030103 - 2⁵ = 2001030071 is a prime.

It is a super-2 number, since 2×2001030103² = 8008242946224381218, which contains 22 as substring.

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 2001030103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001030113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8854003 + ... + 8854228.

It is an arithmetic number, because the mean of its divisors is an integer number (504684612).

Almost surely, 2^2001030103 is an apocalyptic number.

2001030103 is a deficient number, since it is larger than the sum of its proper divisors (17708345).

2001030103 is a wasteful number, since it uses less digits than its factorization.

2001030103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17708344.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 2001030103 is about 44732.8749690873. The cubic root of 2001030103 is about 1260.1373208444.

Adding to 2001030103 its reverse (3010301002), we get a palindrome (5011331105).

The spelling of 2001030103 in words is "two billion, one million, thirty thousand, one hundred three".