12461310256 has 20 divisors (see below), whose sum is σ = 24148280304. Its totient is φ = 6229496000.

The previous prime is 12461310247. The next prime is 12461310283. The reversal of 12461310256 is 65201316421.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19806 + ... + 159106.

Almost surely, 2^12461310256 is an apocalyptic number.

12461310256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12461310256 is a deficient number, since it is larger than the sum of its proper divisors (11686970048).

12461310256 is a wasteful number, since it uses less digits than its factorization.

12461310256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144900 (or 144894 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 12461310256 its reverse (65201316421), we get a palindrome (77662626677).

The spelling of 12461310256 in words is "twelve billion, four hundred sixty-one million, three hundred ten thousand, two hundred fifty-six".