120315503 has 12 divisors (see below), whose sum is σ = 151141200. Its totient is φ = 93751680.

The previous prime is 120315493. The next prime is 120315529. The reversal of 120315503 is 305513021.

It is not a de Polignac number, because 120315503 - 2⁴ = 120315487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120315703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70178 + ... + 71871.

It is an arithmetic number, because the mean of its divisors is an integer number (12595100).

Almost surely, 2^120315503 is an apocalyptic number.

120315503 is a deficient number, since it is larger than the sum of its proper divisors (30825697).

120315503 is a wasteful number, since it uses less digits than its factorization.

120315503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142078 (or 142067 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 120315503 is about 10968.8423728304. The cubic root of 120315503 is about 493.6743128550.

Adding to 120315503 its reverse (305513021), we get a palindrome (425828524).

The spelling of 120315503 in words is "one hundred twenty million, three hundred fifteen thousand, five hundred three".