120120503 has 2 divisors, whose sum is σ = 120120504. Its totient is φ = 120120502.

The previous prime is 120120491. The next prime is 120120509. The reversal of 120120503 is 305021021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120120503 - 2⁶ = 120120439 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120120509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060251 + 60060252.

It is an arithmetic number, because the mean of its divisors is an integer number (60060252).

Almost surely, 2^120120503 is an apocalyptic number.

120120503 is a deficient number, since it is larger than the sum of its proper divisors (1).

120120503 is an equidigital number, since it uses as much as digits as its factorization.

120120503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 120120503 is about 10959.9499542653. The cubic root of 120120503 is about 493.4074629393.

Adding to 120120503 its reverse (305021021), we get a palindrome (425141524).

The spelling of 120120503 in words is "one hundred twenty million, one hundred twenty thousand, five hundred three".