120815203 has 2 divisors, whose sum is σ = 120815204. Its totient is φ = 120815202.

The previous prime is 120815087. The next prime is 120815207. The reversal of 120815203 is 302518021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120815203 - 2²¹ = 118718051 is a prime.

It is not a weakly prime, because it can be changed into another prime (120815207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60407601 + 60407602.

It is an arithmetic number, because the mean of its divisors is an integer number (60407602).

Almost surely, 2^120815203 is an apocalyptic number.

120815203 is a deficient number, since it is larger than the sum of its proper divisors (1).

120815203 is an equidigital number, since it uses as much as digits as its factorization.

120815203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 120815203 is about 10991.5969267436. The cubic root of 120815203 is about 494.3568193030.

The spelling of 120815203 in words is "one hundred twenty million, eight hundred fifteen thousand, two hundred three".