12015323 has 4 divisors (see below), whose sum is σ = 12081888. Its totient is φ = 11948760.

The previous prime is 12015307. The next prime is 12015359. The reversal of 12015323 is 32351021.

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 12015323 - 2⁴ = 12015307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12015373) 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, 33011 + ... + 33372.

It is an arithmetic number, because the mean of its divisors is an integer number (3020472).

Almost surely, 2^12015323 is an apocalyptic number.

12015323 is a deficient number, since it is larger than the sum of its proper divisors (66565).

12015323 is an equidigital number, since it uses as much as digits as its factorization.

12015323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66564.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 12015323 is about 3466.3125940977. The cubic root of 12015323 is about 229.0402540425.

Adding to 12015323 its reverse (32351021), we get a palindrome (44366344).

The spelling of 12015323 in words is "twelve million, fifteen thousand, three hundred twenty-three".