12320310 has 32 divisors (see below), whose sum is σ = 29664000. Its totient is φ = 3274848.

The previous prime is 12320309. The next prime is 12320339. The reversal of 12320310 is 1302321.

It is a happy number.

It is a super-2 number, since 2×12320310² = 303580076992200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14559 + ... + 15381.

It is an arithmetic number, because the mean of its divisors is an integer number (927000).

Almost surely, 2^12320310 is an apocalyptic number.

12320310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12320310 is an abundant number, since it is smaller than the sum of its proper divisors (17343690).

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

12320310 is a wasteful number, since it uses less digits than its factorization.

12320310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 12320310 is about 3510.0299144024. The cubic root of 12320310 is about 230.9620072072.

Adding to 12320310 its reverse (1302321), we get a palindrome (13622631).

The spelling of 12320310 in words is "twelve million, three hundred twenty thousand, three hundred ten".