120542103 has 48 divisors (see below), whose sum is σ = 200019456. Its totient is φ = 69241920.

The previous prime is 120542101. The next prime is 120542129. The reversal of 120542103 is 301245021.

120542103 is a `hidden beast` number, since 1 + 20 + 542 + 103 = 666.

It is not a de Polignac number, because 120542103 - 2¹ = 120542101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120542101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 380101 + ... + 380417.

It is an arithmetic number, because the mean of its divisors is an integer number (4167072).

Almost surely, 2^120542103 is an apocalyptic number.

120542103 is a deficient number, since it is larger than the sum of its proper divisors (79477353).

120542103 is a wasteful number, since it uses less digits than its factorization.

120542103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 120542103 is about 10979.1667716635. The cubic root of 120542103 is about 493.9840441884.

Adding to 120542103 its reverse (301245021), we get a palindrome (421787124).

The spelling of 120542103 in words is "one hundred twenty million, five hundred forty-two thousand, one hundred three".