23020563 has 4 divisors (see below), whose sum is σ = 30694088. Its totient is φ = 15347040.

The previous prime is 23020511. The next prime is 23020573. The reversal of 23020563 is 36502032.

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

It is not a de Polignac number, because 23020563 - 2⁸ = 23020307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23020573) 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, 3836758 + ... + 3836763.

It is an arithmetic number, because the mean of its divisors is an integer number (7673522).

Almost surely, 2^23020563 is an apocalyptic number.

23020563 is a deficient number, since it is larger than the sum of its proper divisors (7673525).

23020563 is an equidigital number, since it uses as much as digits as its factorization.

23020563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7673524.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 23020563 is about 4797.9748853032. The cubic root of 23020563 is about 284.4714240981.

Adding to 23020563 its reverse (36502032), we get a palindrome (59522595).

The spelling of 23020563 in words is "twenty-three million, twenty thousand, five hundred sixty-three".