23243205243 has 16 divisors (see below), whose sum is σ = 32349851136. Its totient is φ = 14816493120.

The previous prime is 23243205241. The next prime is 23243205253. The reversal of 23243205243 is 34250234232.

It is a happy number.

It is not a de Polignac number, because 23243205243 - 2¹ = 23243205241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23243205243.

It is not an unprimeable number, because it can be changed into a prime (23243205241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140863 + ... + 257543.

It is an arithmetic number, because the mean of its divisors is an integer number (2021865696).

Almost surely, 2^23243205243 is an apocalyptic number.

23243205243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23243205243 is a deficient number, since it is larger than the sum of its proper divisors (9106645893).

23243205243 is a wasteful number, since it uses less digits than its factorization.

23243205243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119594.

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 23243205243 its reverse (34250234232), we get a palindrome (57493439475).

The spelling of 23243205243 in words is "twenty-three billion, two hundred forty-three million, two hundred five thousand, two hundred forty-three".