12255530521243 has 16 divisors (see below), whose sum is σ = 12481228818432. Its totient is φ = 12031409628000.

The previous prime is 12255530521181. The next prime is 12255530521259. The reversal of 12255530521243 is 34212503555221.

12255530521243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12255530521243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12255530521196 and 12255530521205.

It is not an unprimeable number, because it can be changed into a prime (12255530521943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16344078 + ... + 17077468.

It is an arithmetic number, because the mean of its divisors is an integer number (780076801152).

Almost surely, 2^{12255530521243} is an apocalyptic number.

12255530521243 is a deficient number, since it is larger than the sum of its proper divisors (225698297189).

12255530521243 is an equidigital number, since it uses as much as digits as its factorization.

12255530521243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734466.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 12255530521243 in words is "twelve trillion, two hundred fifty-five billion, five hundred thirty million, five hundred twenty-one thousand, two hundred forty-three".