12255431311255 has 16 divisors (see below), whose sum is σ = 16074993348000. Its totient is φ = 8895530047360.

The previous prime is 12255431311219. The next prime is 12255431311301. The reversal of 12255431311255 is 55211313455221.

It is a de Polignac number, because none of the positive numbers 2^k-12255431311255 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218858080 + ... + 218914069.

It is an arithmetic number, because the mean of its divisors is an integer number (1004687084250).

Almost surely, 2^{12255431311255} is an apocalyptic number.

12255431311255 is a deficient number, since it is larger than the sum of its proper divisors (3819562036745).

12255431311255 is a wasteful number, since it uses less digits than its factorization.

12255431311255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437772674.

The product of its digits is 180000, while the sum is 40.

Adding to 12255431311255 its reverse (55211313455221), we get a palindrome (67466744766476).

The spelling of 12255431311255 in words is "twelve trillion, two hundred fifty-five billion, four hundred thirty-one million, three hundred eleven thousand, two hundred fifty-five".