2009203103 has 4 divisors (see below), whose sum is σ = 2009400120. Its totient is φ = 2009006088.

The previous prime is 2009203069. The next prime is 2009203153. The reversal of 2009203103 is 3013029002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3013029002 = 2 ⋅1506514501.

It is a cyclic number.

It is not a de Polignac number, because 2009203103 - 2⁸ = 2009202847 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 (2009203153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82325 + ... + 103902.

It is an arithmetic number, because the mean of its divisors is an integer number (502350030).

Almost surely, 2^2009203103 is an apocalyptic number.

2009203103 is a deficient number, since it is larger than the sum of its proper divisors (197017).

2009203103 is a wasteful number, since it uses less digits than its factorization.

2009203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197016.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 2009203103 is about 44824.1352733101. The cubic root of 2009203103 is about 1261.8506237689.

The spelling of 2009203103 in words is "two billion, nine million, two hundred three thousand, one hundred three".