23021323 has 4 divisors (see below), whose sum is σ = 24792208. Its totient is φ = 21250440.

The previous prime is 23021291. The next prime is 23021333. The reversal of 23021323 is 32312032.

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

It is a cyclic number.

It is not a de Polignac number, because 23021323 - 2⁵ = 23021291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23021297 and 23021306.

It is not an unprimeable number, because it can be changed into a prime (23021333) 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, 885423 + ... + 885448.

It is an arithmetic number, because the mean of its divisors is an integer number (6198052).

Almost surely, 2^23021323 is an apocalyptic number.

23021323 is a deficient number, since it is larger than the sum of its proper divisors (1770885).

23021323 is a wasteful number, since it uses less digits than its factorization.

23021323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770884.

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

The square root of 23021323 is about 4798.0540847306. The cubic root of 23021323 is about 284.4745545733.

Adding to 23021323 its reverse (32312032), we get a palindrome (55333355).

The spelling of 23021323 in words is "twenty-three million, twenty-one thousand, three hundred twenty-three".