23123144 has 32 divisors (see below), whose sum is σ = 47692800. Its totient is φ = 10422720.

The previous prime is 23123143. The next prime is 23123159. The reversal of 23123144 is 44132132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23123143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10142 + ... + 12210.

It is an arithmetic number, because the mean of its divisors is an integer number (1490400).

Almost surely, 2^23123144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23123144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23846400).

23123144 is an abundant number, since it is smaller than the sum of its proper divisors (24569656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23123144 is a wasteful number, since it uses less digits than its factorization.

23123144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213 (or 2209 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 23123144 is about 4808.6530338547. The cubic root of 23123144 is about 284.8933385623.

Adding to 23123144 its reverse (44132132), we get a palindrome (67255276).

The spelling of 23123144 in words is "twenty-three million, one hundred twenty-three thousand, one hundred forty-four".