117320421 has 8 divisors (see below), whose sum is σ = 164660320. Its totient is φ = 74097072.

The previous prime is 117320407. The next prime is 117320449. The reversal of 117320421 is 124023711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117320421 - 2¹³ = 117312229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117320221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029070 + ... + 1029183.

It is an arithmetic number, because the mean of its divisors is an integer number (20582540).

Almost surely, 2^117320421 is an apocalyptic number.

It is an amenable number.

117320421 is a deficient number, since it is larger than the sum of its proper divisors (47339899).

117320421 is a wasteful number, since it uses less digits than its factorization.

117320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058275.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 117320421 is about 10831.4551653968. The cubic root of 117320421 is about 489.5434050133.

The spelling of 117320421 in words is "one hundred seventeen million, three hundred twenty thousand, four hundred twenty-one".