23232321 has 36 divisors (see below), whose sum is σ = 39421200. Its totient is φ = 13145328.

The previous prime is 23232311. The next prime is 23232331. The reversal of 23232321 is 12323232.

It is a happy number.

23232321 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (23232311) and next prime (23232331).

It is not a de Polignac number, because 23232321 - 2⁵ = 23232289 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 23232294 and 23232303.

It is not an unprimeable number, because it can be changed into a prime (23232311) 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 35 ways as a sum of consecutive naturals, for example, 61110 + ... + 61488.

Almost surely, 2^23232321 is an apocalyptic number.

23232321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23232321 is a deficient number, since it is larger than the sum of its proper divisors (16188879).

23232321 is a wasteful number, since it uses less digits than its factorization.

23232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 528 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 23232321 is about 4819.9918049723. The cubic root of 23232321 is about 285.3410137768.

Adding to 23232321 its reverse (12323232), we get a palindrome (35555553).

It can be divided in two parts, 2 and 3232321, that added together give a palindrome (3232323).

The spelling of 23232321 in words is "twenty-three million, two hundred thirty-two thousand, three hundred twenty-one".