23313321 has 6 divisors (see below), whose sum is σ = 33674810. Its totient is φ = 15542208.

The previous prime is 23313299. The next prime is 23313331. The reversal of 23313321 is 12331332.

23313321 is a `hidden beast` number, since 2 + 331 + 332 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19053225 + 4260096 = 4365^2 + 2064^2 .

It is not a de Polignac number, because 23313321 - 2⁷ = 23313193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23313294 and 23313303.

It is not an unprimeable number, because it can be changed into a prime (23313331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1295176 + ... + 1295193.

Almost surely, 2^23313321 is an apocalyptic number.

It is an amenable number.

23313321 is a deficient number, since it is larger than the sum of its proper divisors (10361489).

23313321 is a wasteful number, since it uses less digits than its factorization.

23313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590375 (or 2590372 counting only the distinct ones).

The product of its digits is 324, while the sum is 18.

The square root of 23313321 is about 4828.3869977457. The cubic root of 23313321 is about 285.6722450405.

Adding to 23313321 its reverse (12331332), we get a palindrome (35644653).

The spelling of 23313321 in words is "twenty-three million, three hundred thirteen thousand, three hundred twenty-one".