120203321 has 8 divisors (see below), whose sum is σ = 140179200. Its totient is φ = 103031124.

The previous prime is 120203309. The next prime is 120203357. The reversal of 120203321 is 123302021.

It is a happy number.

It is not a de Polignac number, because 120203321 - 2⁶ = 120203257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120203296 and 120203305.

It is not an unprimeable number, because it can be changed into a prime (120203371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174881 + ... + 175566.

It is an arithmetic number, because the mean of its divisors is an integer number (17522400).

Almost surely, 2^120203321 is an apocalyptic number.

It is an amenable number.

120203321 is a deficient number, since it is larger than the sum of its proper divisors (19975879).

120203321 is an frugal number, since it uses more digits than its factorization.

120203321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350468 (or 350454 counting only the distinct ones).

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

The square root of 120203321 is about 10963.7275139434. The cubic root of 120203321 is about 493.5208314061.

Adding to 120203321 its reverse (123302021), we get a palindrome (243505342).

The spelling of 120203321 in words is "one hundred twenty million, two hundred three thousand, three hundred twenty-one".