13143231302256 has 80 divisors (see below), whose sum is σ = 41155572779520. Its totient is φ = 3982797362880.

The previous prime is 13143231302251. The next prime is 13143231302261. The reversal of 13143231302256 is 65220313234131.

13143231302256 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 323 + 1 + 302 + 25 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (13143231302251) and next prime (13143231302261).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13143231302256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143231302251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1382911000 + ... + 1382920503.

It is an arithmetic number, because the mean of its divisors is an integer number (514444659744).

Almost surely, 2^{13143231302256} is an apocalyptic number.

13143231302256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13143231302256 is an abundant number, since it is smaller than the sum of its proper divisors (28012341477264).

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

13143231302256 is a wasteful number, since it uses less digits than its factorization.

13143231302256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765831531 (or 2765831519 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 13143231302256 its reverse (65220313234131), we get a palindrome (78363544536387).

The spelling of 13143231302256 in words is "thirteen trillion, one hundred forty-three billion, two hundred thirty-one million, three hundred two thousand, two hundred fifty-six".