23020309 has 8 divisors (see below), whose sum is σ = 25869312. Its totient is φ = 20325360.

The previous prime is 23020307. The next prime is 23020337. The reversal of 23020309 is 90302032.

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 23020309 - 2¹ = 23020307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020303) 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, 38197 + ... + 38794.

It is an arithmetic number, because the mean of its divisors is an integer number (3233664).

Almost surely, 2^23020309 is an apocalyptic number.

It is an amenable number.

23020309 is a deficient number, since it is larger than the sum of its proper divisors (2849003).

23020309 is a wasteful number, since it uses less digits than its factorization.

23020309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77027.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 23020309 is about 4797.9484157294. The cubic root of 23020309 is about 284.4703778450.

The spelling of 23020309 in words is "twenty-three million, twenty thousand, three hundred nine".