223430231 has 4 divisors (see below), whose sum is σ = 225518472. Its totient is φ = 221341992.

The previous prime is 223430219. The next prime is 223430261. The reversal of 223430231 is 132034322.

223430231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 223430231 - 2¹⁸ = 223168087 is a prime.

It is a super-2 number, since 2×223430231² = 99842136249426722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223430261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1043960 + ... + 1044173.

It is an arithmetic number, because the mean of its divisors is an integer number (56379618).

Almost surely, 2^223430231 is an apocalyptic number.

223430231 is a deficient number, since it is larger than the sum of its proper divisors (2088241).

223430231 is a wasteful number, since it uses less digits than its factorization.

223430231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088240.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 223430231 is about 14947.5827811723. The cubic root of 223430231 is about 606.8024303021.

Adding to 223430231 its reverse (132034322), we get a palindrome (355464553).

The spelling of 223430231 in words is "two hundred twenty-three million, four hundred thirty thousand, two hundred thirty-one".