23405320223 has 4 divisors (see below), whose sum is σ = 23405626200. Its totient is φ = 23405014248.

The previous prime is 23405320207. The next prime is 23405320249. The reversal of 23405320223 is 32202350432.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23405320223 - 2⁴ = 23405320207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23405320192 and 23405320201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23405320423) 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 in 3 ways as a sum of consecutive naturals, for example, 76361 + ... + 229437.

It is an arithmetic number, because the mean of its divisors is an integer number (5851406550).

Almost surely, 2^23405320223 is an apocalyptic number.

23405320223 is a deficient number, since it is larger than the sum of its proper divisors (305977).

23405320223 is a wasteful number, since it uses less digits than its factorization.

23405320223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305976.

The product of its (nonzero) digits is 8640, while the sum is 26.

Adding to 23405320223 its reverse (32202350432), we get a palindrome (55607670655).

The spelling of 23405320223 in words is "twenty-three billion, four hundred five million, three hundred twenty thousand, two hundred twenty-three".