223243121 has 8 divisors (see below), whose sum is σ = 230623488. Its totient is φ = 215874000.

The previous prime is 223243117. The next prime is 223243147. The reversal of 223243121 is 121342322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223243121 - 2² = 223243117 is a prime.

It is a super-3 number, since 3×223243121³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223243093 and 223243102.

It is not an unprimeable number, because it can be changed into a prime (223243171) 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, 60551 + ... + 64131.

It is an arithmetic number, because the mean of its divisors is an integer number (28827936).

Almost surely, 2^223243121 is an apocalyptic number.

It is an amenable number.

223243121 is a deficient number, since it is larger than the sum of its proper divisors (7380367).

223243121 is a wasteful number, since it uses less digits than its factorization.

223243121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623.

The product of its digits is 576, while the sum is 20.

The square root of 223243121 is about 14941.3225987528. The cubic root of 223243121 is about 606.6329955886.

Adding to 223243121 its reverse (121342322), we get a palindrome (344585443).

The spelling of 223243121 in words is "two hundred twenty-three million, two hundred forty-three thousand, one hundred twenty-one".