117321271 has 4 divisors (see below), whose sum is σ = 117778032. Its totient is φ = 116864512.

The previous prime is 117321263. The next prime is 117321287. The reversal of 117321271 is 172123711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172123711 = 43 ⋅4002877.

It is a cyclic number.

It is not a de Polignac number, because 117321271 - 2³ = 117321263 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 (117321251) 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, 227995 + ... + 228508.

It is an arithmetic number, because the mean of its divisors is an integer number (29444508).

Almost surely, 2^117321271 is an apocalyptic number.

117321271 is a deficient number, since it is larger than the sum of its proper divisors (456761).

117321271 is an equidigital number, since it uses as much as digits as its factorization.

117321271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456760.

The product of its digits is 588, while the sum is 25.

The square root of 117321271 is about 10831.4944028975. The cubic root of 117321271 is about 489.5445872766.

Adding to 117321271 its reverse (172123711), we get a palindrome (289444982).

The spelling of 117321271 in words is "one hundred seventeen million, three hundred twenty-one thousand, two hundred seventy-one".