120020503 has 8 divisors (see below), whose sum is σ = 120937680. Its totient is φ = 119107200.

The previous prime is 120020501. The next prime is 120020507. The reversal of 120020503 is 305020021.

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

It is a cyclic number.

It is not a de Polignac number, because 120020503 - 2¹ = 120020501 is a prime.

It is a super-2 number, since 2×120020503² = 28809842280746018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020501) 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, 91176 + ... + 92482.

It is an arithmetic number, because the mean of its divisors is an integer number (15117210).

Almost surely, 2^120020503 is an apocalyptic number.

120020503 is a deficient number, since it is larger than the sum of its proper divisors (917177).

120020503 is a wasteful number, since it uses less digits than its factorization.

120020503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 120020503 is about 10955.3869397662. The cubic root of 120020503 is about 493.2705047920.

Adding to 120020503 its reverse (305020021), we get a palindrome (425040524).

The spelling of 120020503 in words is "one hundred twenty million, twenty thousand, five hundred three".