12108313 has 4 divisors (see below), whose sum is σ = 13838080. Its totient is φ = 10378548.

The previous prime is 12108277. The next prime is 12108319. The reversal of 12108313 is 31380121.

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 a de Polignac number, because none of the positive numbers 2^k-12108313 is a prime.

It is a super-3 number, since 3×12108313³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12108319) 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, 864873 + ... + 864886.

It is an arithmetic number, because the mean of its divisors is an integer number (3459520).

Almost surely, 2^12108313 is an apocalyptic number.

It is an amenable number.

12108313 is a deficient number, since it is larger than the sum of its proper divisors (1729767).

12108313 is an equidigital number, since it uses as much as digits as its factorization.

12108313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729766.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12108313 is about 3479.7001307584. The cubic root of 12108313 is about 229.6296054711.

Adding to 12108313 its reverse (31380121), we get a palindrome (43488434).

It can be divided in two parts, 12108 and 313, that added together give a palindrome (12421).

The spelling of 12108313 in words is "twelve million, one hundred eight thousand, three hundred thirteen".