240420503 has 2 divisors, whose sum is σ = 240420504. Its totient is φ = 240420502.

The previous prime is 240420461. The next prime is 240420517. The reversal of 240420503 is 305024042.

240420503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240420503 - 2⁸ = 240420247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240420533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120210251 + 120210252.

It is an arithmetic number, because the mean of its divisors is an integer number (120210252).

Almost surely, 2^240420503 is an apocalyptic number.

240420503 is a deficient number, since it is larger than the sum of its proper divisors (1).

240420503 is an equidigital number, since it uses as much as digits as its factorization.

240420503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 240420503 is about 15505.4991212795. The cubic root of 240420503 is about 621.8092340341.

Adding to 240420503 its reverse (305024042), we get a palindrome (545444545).

The spelling of 240420503 in words is "two hundred forty million, four hundred twenty thousand, five hundred three".