23100013 has 4 divisors (see below), whose sum is σ = 23328828. Its totient is φ = 22871200.

The previous prime is 23100001. The next prime is 23100017. The reversal of 23100013 is 31000132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21557449 + 1542564 = 4643^2 + 1242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23100013 is a prime.

It is a super-2 number, since 2×23100013² = 1067221201200338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23100017) 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 3 ways as a sum of consecutive naturals, for example, 114256 + ... + 114457.

It is an arithmetic number, because the mean of its divisors is an integer number (5832207).

Almost surely, 2^23100013 is an apocalyptic number.

It is an amenable number.

23100013 is a deficient number, since it is larger than the sum of its proper divisors (228815).

23100013 is a wasteful number, since it uses less digits than its factorization.

23100013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228814.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 23100013 is about 4806.2472886858. The cubic root of 23100013 is about 284.7983101584.

Adding to 23100013 its reverse (31000132), we get a palindrome (54100145).

It can be divided in two parts, 2 and 3100013, that multiplied together give a palindrome (6200026).

The spelling of 23100013 in words is "twenty-three million, one hundred thousand, thirteen".