12310478 has 4 divisors (see below), whose sum is σ = 18465720. Its totient is φ = 6155238.

The previous prime is 12310453. The next prime is 12310481. The reversal of 12310478 is 87401321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87401321 = 7 ⋅12485903.

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 as a sum of consecutive naturals, namely, 3077618 + ... + 3077621.

It is an arithmetic number, because the mean of its divisors is an integer number (4616430).

Almost surely, 2^12310478 is an apocalyptic number.

12310478 is a deficient number, since it is larger than the sum of its proper divisors (6155242).

12310478 is an equidigital number, since it uses as much as digits as its factorization.

12310478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6155241.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12310478 is about 3508.6290770043. The cubic root of 12310478 is about 230.9005525093.

Adding to 12310478 its reverse (87401321), we get a palindrome (99711799).

It can be divided in two parts, 123 and 10478, that added together give a palindrome (10601).

The spelling of 12310478 in words is "twelve million, three hundred ten thousand, four hundred seventy-eight".