23130517 has 4 divisors (see below), whose sum is σ = 23668480. Its totient is φ = 22592556.

The previous prime is 23130509. The next prime is 23130521. The reversal of 23130517 is 71503132.

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 23130517 - 2³ = 23130509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130817) 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, 268917 + ... + 269002.

It is an arithmetic number, because the mean of its divisors is an integer number (5917120).

Almost surely, 2^23130517 is an apocalyptic number.

It is an amenable number.

23130517 is a deficient number, since it is larger than the sum of its proper divisors (537963).

23130517 is an equidigital number, since it uses as much as digits as its factorization.

23130517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537962.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 23130517 is about 4809.4196115540. The cubic root of 23130517 is about 284.9236155201.

Adding to 23130517 its reverse (71503132), we get a palindrome (94633649).

The spelling of 23130517 in words is "twenty-three million, one hundred thirty thousand, five hundred seventeen".