13255128323712 has 768 divisors, whose sum is σ = 43675074979200. Its totient is φ = 4003495372800.

The previous prime is 13255128323711. The next prime is 13255128323741. The reversal of 13255128323712 is 21732382155231.

13255128323712 is a `hidden beast` number, since 1 + 3 + 2 + 551 + 2 + 8 + 3 + 23 + 71 + 2 = 666.

It is a super-2 number, since 2×13255128323712² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13255128323711) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16631277298 + ... + 16631278094.

Almost surely, 2^{13255128323712} is an apocalyptic number.

13255128323712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13255128323712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21837537489600).

13255128323712 is an abundant number, since it is smaller than the sum of its proper divisors (30419946655488).

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

13255128323712 is an frugal number, since it uses more digits than its factorization.

13255128323712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345 (or 1304 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The spelling of 13255128323712 in words is "thirteen trillion, two hundred fifty-five billion, one hundred twenty-eight million, three hundred twenty-three thousand, seven hundred twelve".