23220444243 has 4 divisors (see below), whose sum is σ = 30960592328. Its totient is φ = 15480296160.

The previous prime is 23220444199. The next prime is 23220444251. The reversal of 23220444243 is 34244402232.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23220444243 - 2¹⁶ = 23220378707 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 23220444243.

It is not an unprimeable number, because it can be changed into a prime (23220444253) 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, 3870074038 + ... + 3870074043.

It is an arithmetic number, because the mean of its divisors is an integer number (7740148082).

Almost surely, 2^23220444243 is an apocalyptic number.

23220444243 is a deficient number, since it is larger than the sum of its proper divisors (7740148085).

23220444243 is an equidigital number, since it uses as much as digits as its factorization.

23220444243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7740148084.

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 23220444243 its reverse (34244402232), we get a palindrome (57464846475).

The spelling of 23220444243 in words is "twenty-three billion, two hundred twenty million, four hundred forty-four thousand, two hundred forty-three".