23123120 has 20 divisors (see below), whose sum is σ = 53761440. Its totient is φ = 9249216.

The previous prime is 23123071. The next prime is 23123143. The reversal of 23123120 is 2132132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 23123095 and 23123104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144440 + ... + 144599.

It is an arithmetic number, because the mean of its divisors is an integer number (2688072).

Almost surely, 2^23123120 is an apocalyptic number.

23123120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23123120 is an abundant number, since it is smaller than the sum of its proper divisors (30638320).

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

23123120 is a wasteful number, since it uses less digits than its factorization.

23123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289052 (or 289046 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23123120 is about 4808.6505383527. The cubic root of 23123120 is about 284.8932399967.

Adding to 23123120 its reverse (2132132), we get a palindrome (25255252).

The spelling of 23123120 in words is "twenty-three million, one hundred twenty-three thousand, one hundred twenty".