23144303321 has 4 divisors (see below), whose sum is σ = 23489740752. Its totient is φ = 22798865892.

The previous prime is 23144303317. The next prime is 23144303327. The reversal of 23144303321 is 12330344132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23144303321 - 2² = 23144303317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23144303327) 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, 172718615 + ... + 172718748.

It is an arithmetic number, because the mean of its divisors is an integer number (5872435188).

Almost surely, 2^23144303321 is an apocalyptic number.

It is an amenable number.

23144303321 is a deficient number, since it is larger than the sum of its proper divisors (345437431).

23144303321 is an equidigital number, since it uses as much as digits as its factorization.

23144303321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345437430.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 23144303321 its reverse (12330344132), we get a palindrome (35474647453).

The spelling of 23144303321 in words is "twenty-three billion, one hundred forty-four million, three hundred three thousand, three hundred twenty-one".