120243103 has 4 divisors (see below), whose sum is σ = 125471088. Its totient is φ = 115015120.

The previous prime is 120243031. The next prime is 120243107. The reversal of 120243103 is 301342021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301342021 = 23 ⋅13101827.

It is a cyclic number.

It is not a de Polignac number, because 120243103 - 2¹³ = 120234911 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 (120243107) 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, 2613958 + ... + 2614003.

It is an arithmetic number, because the mean of its divisors is an integer number (31367772).

Almost surely, 2^120243103 is an apocalyptic number.

120243103 is a deficient number, since it is larger than the sum of its proper divisors (5227985).

120243103 is an equidigital number, since it uses as much as digits as its factorization.

120243103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5227984.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 120243103 is about 10965.5416190902. The cubic root of 120243103 is about 493.5752699469.

Adding to 120243103 its reverse (301342021), we get a palindrome (421585124).

The spelling of 120243103 in words is "one hundred twenty million, two hundred forty-three thousand, one hundred three".