12311310 has 32 divisors (see below), whose sum is σ = 32234112. Its totient is φ = 2984480.

The previous prime is 12311267. The next prime is 12311311. The reversal of 12311310 is 1311321.

It is a super-2 number, since 2×12311310² = 303136707832200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18324 + ... + 18983.

It is an arithmetic number, because the mean of its divisors is an integer number (1007316).

Almost surely, 2^12311310 is an apocalyptic number.

12311310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311310 is an abundant number, since it is smaller than the sum of its proper divisors (19922802).

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

12311310 is a wasteful number, since it uses less digits than its factorization.

12311310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37328.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 12311310 is about 3508.7476398282. The cubic root of 12311310 is about 230.9057541739.

Adding to 12311310 its reverse (1311321), we get a palindrome (13622631).

It can be divided in two parts, 12311 and 310, that added together give a palindrome (12621).

The spelling of 12311310 in words is "twelve million, three hundred eleven thousand, three hundred ten".