23016523 has 4 divisors (see below), whose sum is σ = 23026248. Its totient is φ = 23006800.

The previous prime is 23016463. The next prime is 23016527. The reversal of 23016523 is 32561032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23016523 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23016494 and 23016503.

It is not an unprimeable number, because it can be changed into a prime (23016527) 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, 1248 + ... + 6898.

It is an arithmetic number, because the mean of its divisors is an integer number (5756562).

Almost surely, 2^23016523 is an apocalyptic number.

23016523 is a deficient number, since it is larger than the sum of its proper divisors (9725).

23016523 is an equidigital number, since it uses as much as digits as its factorization.

23016523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9724.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 23016523 is about 4797.5538558728. The cubic root of 23016523 is about 284.4547819944.

Adding to 23016523 its reverse (32561032), we get a palindrome (55577555).

The spelling of 23016523 in words is "twenty-three million, sixteen thousand, five hundred twenty-three".