23032321 has 4 divisors (see below), whose sum is σ = 24804052. Its totient is φ = 21260592.

The previous prime is 23032307. The next prime is 23032333. The reversal of 23032321 is 12323032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14737921 + 8294400 = 3839^2 + 2880^2 .

It is a cyclic number.

It is not a de Polignac number, because 23032321 - 2¹³ = 23024129 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 = 23032295 and 23032304.

It is not an unprimeable number, because it can be changed into a prime (23032381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885846 + ... + 885871.

It is an arithmetic number, because the mean of its divisors is an integer number (6201013).

Almost surely, 2^23032321 is an apocalyptic number.

It is an amenable number.

23032321 is a deficient number, since it is larger than the sum of its proper divisors (1771731).

23032321 is a wasteful number, since it uses less digits than its factorization.

23032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771730.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23032321 is about 4799.2000375063. The cubic root of 23032321 is about 284.5198481339.

Adding to 23032321 its reverse (12323032), we get a palindrome (35355353).

It can be divided in two parts, 2303 and 2321, that added together give a square (4624 = 68²).

The spelling of 23032321 in words is "twenty-three million, thirty-two thousand, three hundred twenty-one".