117128223 has 6 divisors (see below), whose sum is σ = 169185224. Its totient is φ = 78085476.

The previous prime is 117128197. The next prime is 117128243. The reversal of 117128223 is 322821711.

It is not a de Polignac number, because 117128223 - 2⁵ = 117128191 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 (117128243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6507115 + ... + 6507132.

Almost surely, 2^117128223 is an apocalyptic number.

117128223 is a deficient number, since it is larger than the sum of its proper divisors (52057001).

117128223 is a wasteful number, since it uses less digits than its factorization.

117128223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13014253 (or 13014250 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 117128223 is about 10822.5793136387. The cubic root of 117128223 is about 489.2759304357.

Adding to 117128223 its reverse (322821711), we get a palindrome (439949934).

The spelling of 117128223 in words is "one hundred seventeen million, one hundred twenty-eight thousand, two hundred twenty-three".