120203103 has 16 divisors (see below), whose sum is σ = 168005376. Its totient is φ = 76359360.

The previous prime is 120203081. The next prime is 120203131. The reversal of 120203103 is 301302021.

It is a happy number.

It is not a de Polignac number, because 120203103 - 2⁹ = 120202591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120203203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6075 + ... + 16652.

It is an arithmetic number, because the mean of its divisors is an integer number (10500336).

Almost surely, 2^120203103 is an apocalyptic number.

120203103 is a deficient number, since it is larger than the sum of its proper divisors (47802273).

120203103 is a wasteful number, since it uses less digits than its factorization.

120203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22814.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 120203103 is about 10963.7175720647. The cubic root of 120203103 is about 493.5205330571.

Adding to 120203103 its reverse (301302021), we get a palindrome (421505124).

The spelling of 120203103 in words is "one hundred twenty million, two hundred three thousand, one hundred three".