23203000243 has 4 divisors (see below), whose sum is σ = 23221143040. Its totient is φ = 23184857448.

The previous prime is 23203000157. The next prime is 23203000259. The reversal of 23203000243 is 34200030232.

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 23203000243 - 2²⁵ = 23169445811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23203000243.

It is not an unprimeable number, because it can be changed into a prime (23203040243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9069480 + ... + 9072037.

It is an arithmetic number, because the mean of its divisors is an integer number (5805285760).

Almost surely, 2^23203000243 is an apocalyptic number.

23203000243 is a deficient number, since it is larger than the sum of its proper divisors (18142797).

23203000243 is a wasteful number, since it uses less digits than its factorization.

23203000243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18142796.

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 23203000243 its reverse (34200030232), we get a palindrome (57403030475).

The spelling of 23203000243 in words is "twenty-three billion, two hundred three million, two hundred forty-three", and thus it is an aban number.