117020379185 has 4 divisors (see below), whose sum is σ = 140424455028. Its totient is φ = 93616303344.

The previous prime is 117020379139. The next prime is 117020379197. The reversal of 117020379185 is 581973020711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 581973020711 = 97 ⋅5999721863.

It can be written as a sum of positive squares in 2 ways, for example, as 34201324096 + 82819055089 = 184936^2 + 287783^2 .

It is a cyclic number.

It is not a de Polignac number, because 117020379185 - 2¹² = 117020375089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11702037914 + ... + 11702037923.

It is an arithmetic number, because the mean of its divisors is an integer number (35106113757).

Almost surely, 2^117020379185 is an apocalyptic number.

It is an amenable number.

117020379185 is a deficient number, since it is larger than the sum of its proper divisors (23404075843).

117020379185 is an equidigital number, since it uses as much as digits as its factorization.

117020379185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23404075842.

The product of its (nonzero) digits is 105840, while the sum is 44.

Adding to 117020379185 its reverse (581973020711), we get a palindrome (698993399896).

The spelling of 117020379185 in words is "one hundred seventeen billion, twenty million, three hundred seventy-nine thousand, one hundred eighty-five".