115443231515543 has 2 divisors, whose sum is σ = 115443231515544. Its totient is φ = 115443231515542.

The previous prime is 115443231515503. The next prime is 115443231515597. The reversal of 115443231515543 is 345515132344511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115443231515543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115443231515503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57721615757771 + 57721615757772.

It is an arithmetic number, because the mean of its divisors is an integer number (57721615757772).

Almost surely, 2^{115443231515543} is an apocalyptic number.

115443231515543 is a deficient number, since it is larger than the sum of its proper divisors (1).

115443231515543 is an equidigital number, since it uses as much as digits as its factorization.

115443231515543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160000, while the sum is 47.

The spelling of 115443231515543 in words is "one hundred fifteen trillion, four hundred forty-three billion, two hundred thirty-one million, five hundred fifteen thousand, five hundred forty-three".