120020103 has 32 divisors (see below), whose sum is σ = 206016000. Its totient is φ = 67635648.

The previous prime is 120020099. The next prime is 120020107. The reversal of 120020103 is 301020021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120020099) and next prime (120020107).

It is not a de Polignac number, because 120020103 - 2² = 120020099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9448 + ... + 18146.

It is an arithmetic number, because the mean of its divisors is an integer number (6438000).

Almost surely, 2^120020103 is an apocalyptic number.

120020103 is a deficient number, since it is larger than the sum of its proper divisors (85995897).

120020103 is an equidigital number, since it uses as much as digits as its factorization.

120020103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8788 (or 8782 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 120020103 is about 10955.3686838919. The cubic root of 120020103 is about 493.2699568067.

Adding to 120020103 its reverse (301020021), we get a palindrome (421040124).

The spelling of 120020103 in words is "one hundred twenty million, twenty thousand, one hundred three".