120321203 has 4 divisors (see below), whose sum is σ = 124470240. Its totient is φ = 116172168.

The previous prime is 120321191. The next prime is 120321239. The reversal of 120321203 is 302123021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302123021 = 599 ⋅504379.

It is a cyclic number.

It is not a de Polignac number, because 120321203 - 2⁸ = 120320947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120321263) 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 in 3 ways as a sum of consecutive naturals, for example, 2074475 + ... + 2074532.

It is an arithmetic number, because the mean of its divisors is an integer number (31117560).

Almost surely, 2^120321203 is an apocalyptic number.

120321203 is a deficient number, since it is larger than the sum of its proper divisors (4149037).

120321203 is an equidigital number, since it uses as much as digits as its factorization.

120321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149036.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 120321203 is about 10969.1021966248. The cubic root of 120321203 is about 493.6821087447.

Adding to 120321203 its reverse (302123021), we get a palindrome (422444224).

The spelling of 120321203 in words is "one hundred twenty million, three hundred twenty-one thousand, two hundred three".