120903 has 8 divisors (see below), whose sum is σ = 162816. Its totient is φ = 79800.

The previous prime is 120899. The next prime is 120907. The reversal of 120903 is 309021.

It is an interprime number because it is at equal distance from previous prime (120899) and next prime (120907).

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

It is not a de Polignac number, because 120903 - 2² = 120899 is a prime.

120903 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468 + ... + 678.

It is an arithmetic number, because the mean of its divisors is an integer number (20352).

2¹²⁰⁹⁰³ is an apocalyptic number.

120903 is a deficient number, since it is larger than the sum of its proper divisors (41913).

120903 is a wasteful number, since it uses less digits than its factorization.

120903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 120903 is about 347.7110869673. The cubic root of 120903 is about 49.4476540815.

Adding to 120903 its reverse (309021), we get a palindrome (429924).

The spelling of 120903 in words is "one hundred twenty thousand, nine hundred three".