303223120 has 20 divisors (see below), whose sum is σ = 704993940. Its totient is φ = 121289216.

The previous prime is 303223091. The next prime is 303223187. The reversal of 303223120 is 21322303.

It can be written as a sum of positive squares in 2 ways, for example, as 77862976 + 225360144 = 8824^2 + 15012^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 303223094 and 303223103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1895065 + ... + 1895224.

It is an arithmetic number, because the mean of its divisors is an integer number (35249697).

Almost surely, 2^303223120 is an apocalyptic number.

It is an amenable number.

303223120 is an abundant number, since it is smaller than the sum of its proper divisors (401770820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

303223120 is a wasteful number, since it uses less digits than its factorization.

303223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790302 (or 3790296 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 303223120 is about 17413.3029606677. The cubic root of 303223120 is about 671.8218183108.

Adding to 303223120 its reverse (21322303), we get a palindrome (324545423).

The spelling of 303223120 in words is "three hundred three million, two hundred twenty-three thousand, one hundred twenty".