23230013 has 4 divisors (see below), whose sum is σ = 23240700. Its totient is φ = 23219328.

The previous prime is 23229967. The next prime is 23230037. The reversal of 23230013 is 31003232.

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 can be written as a sum of positive squares in 2 ways, for example, as 9406489 + 13823524 = 3067^2 + 3718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23230013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23230013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23230093) 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, 788 + ... + 6861.

It is an arithmetic number, because the mean of its divisors is an integer number (5810175).

Almost surely, 2^23230013 is an apocalyptic number.

It is an amenable number.

23230013 is a deficient number, since it is larger than the sum of its proper divisors (10687).

23230013 is an equidigital number, since it uses as much as digits as its factorization.

23230013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10686.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 23230013 is about 4819.7523795315. The cubic root of 23230013 is about 285.3315644573.

Adding to 23230013 its reverse (31003232), we get a palindrome (54233245).

The spelling of 23230013 in words is "twenty-three million, two hundred thirty thousand, thirteen".