12256350310420 has 48 divisors (see below), whose sum is σ = 26293352762880. Its totient is φ = 4796881254144.

The previous prime is 12256350310417. The next prime is 12256350310469. The reversal of 12256350310420 is 2401305365221.

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 in 15 ways as a sum of consecutive naturals, for example, 1513672 + ... + 5177248.

It is an arithmetic number, because the mean of its divisors is an integer number (547778182560).

Almost surely, 2^{12256350310420} is an apocalyptic number.

12256350310420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12256350310420 is an abundant number, since it is smaller than the sum of its proper divisors (14037002452460).

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

12256350310420 is a wasteful number, since it uses less digits than its factorization.

12256350310420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667192 (or 3667190 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 12256350310420 its reverse (2401305365221), we get a palindrome (14657655675641).

The spelling of 12256350310420 in words is "twelve trillion, two hundred fifty-six billion, three hundred fifty million, three hundred ten thousand, four hundred twenty".