223120320 has 56 divisors (see below), whose sum is σ = 708410064. Its totient is φ = 59498496.

The previous prime is 223120307. The next prime is 223120333. The reversal of 223120320 is 23021322.

It is an interprime number because it is at equal distance from previous prime (223120307) and next prime (223120333).

It is a super-3 number, since 3×223120320³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 223120320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115249 + ... + 117168.

Almost surely, 2^223120320 is an apocalyptic number.

223120320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223120320 is an abundant number, since it is smaller than the sum of its proper divisors (485289744).

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

223120320 is a wasteful number, since it uses less digits than its factorization.

223120320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232437 (or 232427 counting only the distinct ones).

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

The square root of 223120320 is about 14937.2125913773. The cubic root of 223120320 is about 606.5217434827.

Adding to 223120320 its reverse (23021322), we get a palindrome (246141642).

The spelling of 223120320 in words is "two hundred twenty-three million, one hundred twenty thousand, three hundred twenty".