720561203 has 2 divisors, whose sum is σ = 720561204. Its totient is φ = 720561202.

The previous prime is 720561197. The next prime is 720561209. The reversal of 720561203 is 302165027.

It is a balanced prime because it is at equal distance from previous prime (720561197) and next prime (720561209).

It is a cyclic number.

It is not a de Polignac number, because 720561203 - 2⁶ = 720561139 is a prime.

It is not a weakly prime, because it can be changed into another prime (720561209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360280601 + 360280602.

It is an arithmetic number, because the mean of its divisors is an integer number (360280602).

Almost surely, 2^720561203 is an apocalyptic number.

720561203 is a deficient number, since it is larger than the sum of its proper divisors (1).

720561203 is an equidigital number, since it uses as much as digits as its factorization.

720561203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 720561203 is about 26843.2710935162. The cubic root of 720561203 is about 896.5137571484.

The spelling of 720561203 in words is "seven hundred twenty million, five hundred sixty-one thousand, two hundred three".