120542503 has 2 divisors, whose sum is σ = 120542504. Its totient is φ = 120542502.

The previous prime is 120542489. The next prime is 120542519. The reversal of 120542503 is 305245021.

It is a weak prime.

It is an emirp because it is prime and its reverse (305245021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120542503 - 2⁹ = 120541991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120542533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60271251 + 60271252.

It is an arithmetic number, because the mean of its divisors is an integer number (60271252).

Almost surely, 2^120542503 is an apocalyptic number.

120542503 is a deficient number, since it is larger than the sum of its proper divisors (1).

120542503 is an equidigital number, since it uses as much as digits as its factorization.

120542503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 120542503 is about 10979.1849879670. The cubic root of 120542503 is about 493.9845905906.

Adding to 120542503 its reverse (305245021), we get a palindrome (425787524).

The spelling of 120542503 in words is "one hundred twenty million, five hundred forty-two thousand, five hundred three".