23730013 has 4 divisors (see below), whose sum is σ = 23744128. Its totient is φ = 23715900.

The previous prime is 23730001. The next prime is 23730041. The reversal of 23730013 is 31003732.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23730013 - 2²¹ = 21632861 is a prime.

It is a super-3 number, since 3×23730013³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23730053) 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, 4131 + ... + 8032.

It is an arithmetic number, because the mean of its divisors is an integer number (5936032).

Almost surely, 2^23730013 is an apocalyptic number.

It is an amenable number.

23730013 is a deficient number, since it is larger than the sum of its proper divisors (14115).

23730013 is a wasteful number, since it uses less digits than its factorization.

23730013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14114.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 23730013 is about 4871.3461178611. The cubic root of 23730013 is about 287.3641974886.

Adding to 23730013 its reverse (31003732), we get a palindrome (54733745).

The spelling of 23730013 in words is "twenty-three million, seven hundred thirty thousand, thirteen".