117045203509 has 4 divisors (see below), whose sum is σ = 126048680716. Its totient is φ = 108041726304.

The previous prime is 117045203491. The next prime is 117045203521. The reversal of 117045203509 is 905302540711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51145179409 + 65900024100 = 226153^2 + 256710^2 .

It is a cyclic number.

It is not a de Polignac number, because 117045203509 - 2⁵ = 117045203477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117045203809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4501738584 + ... + 4501738609.

It is an arithmetic number, because the mean of its divisors is an integer number (31512170179).

Almost surely, 2^117045203509 is an apocalyptic number.

It is an amenable number.

117045203509 is a deficient number, since it is larger than the sum of its proper divisors (9003477207).

117045203509 is an equidigital number, since it uses as much as digits as its factorization.

117045203509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9003477206.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 117045203509 in words is "one hundred seventeen billion, forty-five million, two hundred three thousand, five hundred nine".