23123321 has 8 divisors (see below), whose sum is σ = 25053504. Its totient is φ = 21214800.

The previous prime is 23123311. The next prime is 23123333. The reversal of 23123321 is 12332132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23123321 - 2²² = 18929017 is a prime.

It is a super-3 number, since 3×23123321³ (a number of 23 digits) contains 333 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 23123321.

It is not an unprimeable number, because it can be changed into a prime (23123311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3155 + ... + 7496.

It is an arithmetic number, because the mean of its divisors is an integer number (3131688).

Almost surely, 2^23123321 is an apocalyptic number.

It is an amenable number.

23123321 is a deficient number, since it is larger than the sum of its proper divisors (1930183).

23123321 is a wasteful number, since it uses less digits than its factorization.

23123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10831.

The product of its digits is 216, while the sum is 17.

The square root of 23123321 is about 4808.6714381417. The cubic root of 23123321 is about 284.8940654818.

Adding to 23123321 its reverse (12332132), we get a palindrome (35455453).

The spelling of 23123321 in words is "twenty-three million, one hundred twenty-three thousand, three hundred twenty-one".