12312130 has 32 divisors (see below), whose sum is σ = 23328000. Its totient is φ = 4669632.

The previous prime is 12312119. The next prime is 12312143. The reversal of 12312130 is 3121321.

It is a self number, because there is not a number n which added to its sum of digits gives 12312130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45636 + ... + 45904.

It is an arithmetic number, because the mean of its divisors is an integer number (729000).

Almost surely, 2^12312130 is an apocalyptic number.

12312130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312130 is a deficient number, since it is larger than the sum of its proper divisors (11015870).

12312130 is a wasteful number, since it uses less digits than its factorization.

12312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498.

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

The square root of 12312130 is about 3508.8644886915. The cubic root of 12312130 is about 230.9108805852.

Adding to 12312130 its reverse (3121321), we get a palindrome (15433451).

The spelling of 12312130 in words is "twelve million, three hundred twelve thousand, one hundred thirty".