2101203103 has 8 divisors (see below), whose sum is σ = 2258853120. Its totient is φ = 1948259160.

The previous prime is 2101203067. The next prime is 2101203109. The reversal of 2101203103 is 3013021012.

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 2101203103 - 2²⁹ = 1564332191 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 (2101203109) 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, 1175593 + ... + 1177378.

It is an arithmetic number, because the mean of its divisors is an integer number (282356640).

Almost surely, 2^2101203103 is an apocalyptic number.

2101203103 is a deficient number, since it is larger than the sum of its proper divisors (157650017).

2101203103 is a wasteful number, since it uses less digits than its factorization.

2101203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353037.

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

The square root of 2101203103 is about 45838.8819998918. The cubic root of 2101203103 is about 1280.8236688778.

Adding to 2101203103 its reverse (3013021012), we get a palindrome (5114224115).

The spelling of 2101203103 in words is "two billion, one hundred one million, two hundred three thousand, one hundred three".