12310308 has 18 divisors (see below), whose sum is σ = 31117814. Its totient is φ = 4103424.

The previous prime is 12310303. The next prime is 12310321. The reversal of 12310308 is 80301321.

It can be written as a sum of positive squares in only one way, i.e., 10969344 + 1340964 = 3312^2 + 1158^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170941 + ... + 171012.

Almost surely, 2^12310308 is an apocalyptic number.

12310308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12310308 is an abundant number, since it is smaller than the sum of its proper divisors (18807506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12310308 is a wasteful number, since it uses less digits than its factorization.

12310308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341963 (or 341958 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12310308 is about 3508.6048509343. The cubic root of 12310308 is about 230.8994896404.

Adding to 12310308 its reverse (80301321), we get a palindrome (92611629).

The spelling of 12310308 in words is "twelve million, three hundred ten thousand, three hundred eight".