120142103 has 4 divisors (see below), whose sum is σ = 120609840. Its totient is φ = 119674368.

The previous prime is 120142067. The next prime is 120142109. The reversal of 120142103 is 301241021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301241021 = 12163 ⋅24767.

It is a cyclic number.

It is not a de Polignac number, because 120142103 - 2¹⁸ = 119879959 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 (120142109) 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, 233483 + ... + 233996.

It is an arithmetic number, because the mean of its divisors is an integer number (30152460).

Almost surely, 2^120142103 is an apocalyptic number.

120142103 is a deficient number, since it is larger than the sum of its proper divisors (467737).

120142103 is an equidigital number, since it uses as much as digits as its factorization.

120142103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467736.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 120142103 is about 10960.9353159299. The cubic root of 120142103 is about 493.4370359159.

Adding to 120142103 its reverse (301241021), we get a palindrome (421383124).

The spelling of 120142103 in words is "one hundred twenty million, one hundred forty-two thousand, one hundred three".