23144354443 has 16 divisors (see below), whose sum is σ = 27314172160. Its totient is φ = 19198874016.

The previous prime is 23144354437. The next prime is 23144354447. The reversal of 23144354443 is 34445344132.

It is not a de Polignac number, because 23144354443 - 2⁹ = 23144353931 is a prime.

It is a super-2 number, since 2×23144354443² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23144354447) 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, 319905 + ... + 385522.

It is an arithmetic number, because the mean of its divisors is an integer number (1707135760).

Almost surely, 2^23144354443 is an apocalyptic number.

23144354443 is a deficient number, since it is larger than the sum of its proper divisors (4169817717).

23144354443 is a wasteful number, since it uses less digits than its factorization.

23144354443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705586.

The product of its digits is 276480, while the sum is 37.

Adding to 23144354443 its reverse (34445344132), we get a palindrome (57589698575).

The spelling of 23144354443 in words is "twenty-three billion, one hundred forty-four million, three hundred fifty-four thousand, four hundred forty-three".