12305210145543 has 64 divisors (see below), whose sum is σ = 21299769953280. Its totient is φ = 6875330626944.

The previous prime is 12305210145533. The next prime is 12305210145593. The reversal of 12305210145543 is 34554101250321.

12305210145543 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 5 + 2 + 101 + 4 + 5 + 543 = 666.

It is not a de Polignac number, because 12305210145543 - 2⁵ = 12305210145511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12305210145498 and 12305210145507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305210145533) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 838680 + ... + 5031282.

It is an arithmetic number, because the mean of its divisors is an integer number (332808905520).

Almost surely, 2^{12305210145543} is an apocalyptic number.

12305210145543 is a deficient number, since it is larger than the sum of its proper divisors (8994559807737).

12305210145543 is a wasteful number, since it uses less digits than its factorization.

12305210145543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4192965 (or 4192959 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 12305210145543 its reverse (34554101250321), we get a palindrome (46859311395864).

The spelling of 12305210145543 in words is "twelve trillion, three hundred five billion, two hundred ten million, one hundred forty-five thousand, five hundred forty-three".