12310000 has 50 divisors (see below), whose sum is σ = 29827952. Its totient is φ = 4920000.

The previous prime is 12309961. The next prime is 12310013. The reversal of 12310000 is 1321.

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×12310000² = 303072200000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9385 + ... + 10615.

Almost surely, 2^12310000 is an apocalyptic number.

12310000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14913976).

12310000 is an abundant number, since it is smaller than the sum of its proper divisors (17517952).

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

12310000 is an equidigital number, since it uses as much as digits as its factorization.

12310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 12310000 is about 3508.5609585698. The cubic root of 12310000 is about 230.8975639470.

Adding to 12310000 its reverse (1321), we get a palindrome (12311321).

The spelling of 12310000 in words is "twelve million, three hundred ten thousand".