23144224321 has 16 divisors (see below), whose sum is σ = 23495472000. Its totient is φ = 22795815168.

The previous prime is 23144224307. The next prime is 23144224331. The reversal of 23144224321 is 12342244132.

It is a cyclic number.

It is not a de Polignac number, because 23144224321 - 2¹⁹ = 23143700033 is a prime.

It is a super-2 number, since 2×23144224321² (a number of 22 digits) contains 22 as substring.

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 23144224321.

It is not an unprimeable number, because it can be changed into a prime (23144224331) 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, 23688585 + ... + 23689561.

It is an arithmetic number, because the mean of its divisors is an integer number (1468467000).

Almost surely, 2^23144224321 is an apocalyptic number.

It is an amenable number.

23144224321 is a deficient number, since it is larger than the sum of its proper divisors (351247679).

23144224321 is a wasteful number, since it uses less digits than its factorization.

23144224321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088.

The product of its digits is 9216, while the sum is 28.

Adding to 23144224321 its reverse (12342244132), we get a palindrome (35486468453).

The spelling of 23144224321 in words is "twenty-three billion, one hundred forty-four million, two hundred twenty-four thousand, three hundred twenty-one".