117540604243 has 4 divisors (see below), whose sum is σ = 117541582240. Its totient is φ = 117539626248.

The previous prime is 117540604241. The next prime is 117540604249. The reversal of 117540604243 is 342406045711.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 342406045711 = 1549 ⋅221049739.

It is a cyclic number.

It is not a de Polignac number, because 117540604243 - 2¹ = 117540604241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117540604241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278523 + ... + 559156.

It is an arithmetic number, because the mean of its divisors is an integer number (29385395560).

Almost surely, 2^117540604243 is an apocalyptic number.

117540604243 is a deficient number, since it is larger than the sum of its proper divisors (977997).

117540604243 is an equidigital number, since it uses as much as digits as its factorization.

117540604243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977996.

The product of its (nonzero) digits is 80640, while the sum is 37.

Adding to 117540604243 its reverse (342406045711), we get a palindrome (459946649954).

The spelling of 117540604243 in words is "one hundred seventeen billion, five hundred forty million, six hundred four thousand, two hundred forty-three".