23120434243 has 4 divisors (see below), whose sum is σ = 23128467840. Its totient is φ = 23112400648.

The previous prime is 23120434217. The next prime is 23120434283. The reversal of 23120434243 is 34243402132.

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 23120434243 - 2²¹ = 23118337091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23120434213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4012480 + ... + 4018237.

It is an arithmetic number, because the mean of its divisors is an integer number (5782116960).

Almost surely, 2^23120434243 is an apocalyptic number.

23120434243 is a deficient number, since it is larger than the sum of its proper divisors (8033597).

23120434243 is an equidigital number, since it uses as much as digits as its factorization.

23120434243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8033596.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 23120434243 its reverse (34243402132), we get a palindrome (57363836375).

The spelling of 23120434243 in words is "twenty-three billion, one hundred twenty million, four hundred thirty-four thousand, two hundred forty-three".