120503055 has 16 divisors (see below), whose sum is σ = 204146784. Its totient is φ = 60487680.

The previous prime is 120503041. The next prime is 120503093. The reversal of 120503055 is 550305021.

It is not a de Polignac number, because 120503055 - 2⁴ = 120503039 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 236026 + ... + 236535.

It is an arithmetic number, because the mean of its divisors is an integer number (12759174).

Almost surely, 2^120503055 is an apocalyptic number.

120503055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120503055 is a deficient number, since it is larger than the sum of its proper divisors (83643729).

120503055 is a wasteful number, since it uses less digits than its factorization.

120503055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472586.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 120503055 is about 10977.3883506051. The cubic root of 120503055 is about 493.9306985892.

Adding to 120503055 its reverse (550305021), we get a palindrome (670808076).

The spelling of 120503055 in words is "one hundred twenty million, five hundred three thousand, fifty-five".