12311230 has 32 divisors (see below), whose sum is σ = 23677920. Its totient is φ = 4592640.

The previous prime is 12311219. The next prime is 12311251. The reversal of 12311230 is 3211321.

It is a super-2 number, since 2×12311230² = 303132768225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12311230.

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, 23370 + ... + 23890.

It is an arithmetic number, because the mean of its divisors is an integer number (739935).

Almost surely, 2^12311230 is an apocalyptic number.

12311230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311230 is a deficient number, since it is larger than the sum of its proper divisors (11366690).

12311230 is a wasteful number, since it uses less digits than its factorization.

12311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12311230 is about 3508.7362397308. The cubic root of 12311230 is about 230.9052540240.

Adding to 12311230 its reverse (3211321), we get a palindrome (15522551).

Subtracting from 12311230 its reverse (3211321), we obtain a palindrome (9099909).

The spelling of 12311230 in words is "twelve million, three hundred eleven thousand, two hundred thirty".