117922321 has 4 divisors (see below), whose sum is σ = 128642544. Its totient is φ = 107202100.

The previous prime is 117922313. The next prime is 117922327. The reversal of 117922321 is 123229711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123229711 = 11 ⋅11202701.

It is a cyclic number.

It is not a de Polignac number, because 117922321 - 2³ = 117922313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117922321.

It is not an unprimeable number, because it can be changed into a prime (117922327) 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, 5360095 + ... + 5360116.

It is an arithmetic number, because the mean of its divisors is an integer number (32160636).

Almost surely, 2^117922321 is an apocalyptic number.

117922321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

117922321 is a deficient number, since it is larger than the sum of its proper divisors (10720223).

117922321 is a wasteful number, since it uses less digits than its factorization.

117922321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10720222.

The product of its digits is 1512, while the sum is 28.

The square root of 117922321 is about 10859.2044367900. The cubic root of 117922321 is about 490.3791609244.

The spelling of 117922321 in words is "one hundred seventeen million, nine hundred twenty-two thousand, three hundred twenty-one".