120342403 has 8 divisors (see below), whose sum is σ = 124765056. Its totient is φ = 115953600.

The previous prime is 120342379. The next prime is 120342413. The reversal of 120342403 is 304243021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120342403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120342413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108 + ... + 15553.

It is an arithmetic number, because the mean of its divisors is an integer number (15595632).

Almost surely, 2^120342403 is an apocalyptic number.

120342403 is a deficient number, since it is larger than the sum of its proper divisors (4422653).

120342403 is a wasteful number, since it uses less digits than its factorization.

120342403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16925.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 120342403 is about 10970.0685047998. The cubic root of 120342403 is about 493.7111018227.

Adding to 120342403 its reverse (304243021), we get a palindrome (424585424).

The spelling of 120342403 in words is "one hundred twenty million, three hundred forty-two thousand, four hundred three".