223020312 has 32 divisors (see below), whose sum is σ = 572622000. Its totient is φ = 72330624.

The previous prime is 223020299. The next prime is 223020319. The reversal of 223020312 is 213020322.

It is a junction number, because it is equal to n+sod(n) for n = 223020291 and 223020300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223020319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124687 + ... + 126462.

Almost surely, 2^223020312 is an apocalyptic number.

It is an amenable number.

223020312 is an abundant number, since it is smaller than the sum of its proper divisors (349601688).

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

223020312 is a wasteful number, since it uses less digits than its factorization.

223020312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251195 (or 251191 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 223020312 is about 14933.8646036450. The cubic root of 223020312 is about 606.4311106327.

Adding to 223020312 its reverse (213020322), we get a palindrome (436040634).

The spelling of 223020312 in words is "two hundred twenty-three million, twenty thousand, three hundred twelve".