23203440223 has 2 divisors, whose sum is σ = 23203440224. Its totient is φ = 23203440222.

The previous prime is 23203440209. The next prime is 23203440269. The reversal of 23203440223 is 32204430232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23203440223 - 2⁵ = 23203440191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23203440023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601720111 + 11601720112.

It is an arithmetic number, because the mean of its divisors is an integer number (11601720112).

Almost surely, 2^23203440223 is an apocalyptic number.

23203440223 is a deficient number, since it is larger than the sum of its proper divisors (1).

23203440223 is an equidigital number, since it uses as much as digits as its factorization.

23203440223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 23203440223 its reverse (32204430232), we get a palindrome (55407870455).

Subtracting 23203440223 from its reverse (32204430232), we obtain a palindrome (9000990009).

The spelling of 23203440223 in words is "twenty-three billion, two hundred three million, four hundred forty thousand, two hundred twenty-three".