120030503 has 2 divisors, whose sum is σ = 120030504. Its totient is φ = 120030502.

The previous prime is 120030451. The next prime is 120030509. The reversal of 120030503 is 305030021.

It is a strong prime.

It is an emirp because it is prime and its reverse (305030021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120030503 - 2²⁰ = 118981927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120030509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60015251 + 60015252.

It is an arithmetic number, because the mean of its divisors is an integer number (60015252).

Almost surely, 2^120030503 is an apocalyptic number.

120030503 is a deficient number, since it is larger than the sum of its proper divisors (1).

120030503 is an equidigital number, since it uses as much as digits as its factorization.

120030503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 120030503 is about 10955.8433267367. The cubic root of 120030503 is about 493.2842040293.

Adding to 120030503 its reverse (305030021), we get a palindrome (425060524).

The spelling of 120030503 in words is "one hundred twenty million, thirty thousand, five hundred three".