23231315 has 4 divisors (see below), whose sum is σ = 27877584. Its totient is φ = 18585048.

The previous prime is 23231267. The next prime is 23231317. The reversal of 23231315 is 51313232.

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

It is a cyclic number.

It is not a de Polignac number, because 23231315 - 2¹⁴ = 23214931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23231317) 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, 2323127 + ... + 2323136.

It is an arithmetic number, because the mean of its divisors is an integer number (6969396).

Almost surely, 2^23231315 is an apocalyptic number.

23231315 is a deficient number, since it is larger than the sum of its proper divisors (4646269).

23231315 is an equidigital number, since it uses as much as digits as its factorization.

23231315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4646268.

The product of its digits is 540, while the sum is 20.

The square root of 23231315 is about 4819.8874468186. The cubic root of 23231315 is about 285.3368951295.

Adding to 23231315 its reverse (51313232), we get a palindrome (74544547).

The spelling of 23231315 in words is "twenty-three million, two hundred thirty-one thousand, three hundred fifteen".