23520223 has 2 divisors, whose sum is σ = 23520224. Its totient is φ = 23520222.

The previous prime is 23520221. The next prime is 23520239. The reversal of 23520223 is 32202532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23520223 - 2¹ = 23520221 is a prime.

Together with 23520221, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23520223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23520221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11760111 + 11760112.

It is an arithmetic number, because the mean of its divisors is an integer number (11760112).

Almost surely, 2^23520223 is an apocalyptic number.

23520223 is a deficient number, since it is larger than the sum of its proper divisors (1).

23520223 is an equidigital number, since it uses as much as digits as its factorization.

23520223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 23520223 is about 4849.7652520509. The cubic root of 23520223 is about 286.5148557709.

Adding to 23520223 its reverse (32202532), we get a palindrome (55722755).

It can be divided in two parts, 235202 and 23, that added together give a square (235225 = 485²).

The spelling of 23520223 in words is "twenty-three million, five hundred twenty thousand, two hundred twenty-three".