12310056 has 120 divisors (see below), whose sum is σ = 38140410. Its totient is φ = 3706560.

The previous prime is 12310033. The next prime is 12310073. The reversal of 12310056 is 65001321.

It can be written as a sum of positive squares in only one way, i.e., 11329956 + 980100 = 3366^2 + 990^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 78330 + ... + 78486.

Almost surely, 2^12310056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12310056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19070205).

12310056 is an abundant number, since it is smaller than the sum of its proper divisors (25830354).

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

12310056 is a wasteful number, since it uses less digits than its factorization.

12310056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 12310056 is about 3508.5689390405. The cubic root of 12310056 is about 230.8979140754.

Adding to 12310056 its reverse (65001321), we get a palindrome (77311377).

The spelling of 12310056 in words is "twelve million, three hundred ten thousand, fifty-six".