117442123 has 4 divisors (see below), whose sum is σ = 118190320. Its totient is φ = 116693928.

The previous prime is 117442121. The next prime is 117442133. The reversal of 117442123 is 321244711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321244711 = 1049 ⋅306239.

It is a cyclic number.

It is not a de Polignac number, because 117442123 - 2¹ = 117442121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117442121) 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, 373863 + ... + 374176.

It is an arithmetic number, because the mean of its divisors is an integer number (29547580).

Almost surely, 2^117442123 is an apocalyptic number.

117442123 is a deficient number, since it is larger than the sum of its proper divisors (748197).

117442123 is an equidigital number, since it uses as much as digits as its factorization.

117442123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748196.

The product of its digits is 1344, while the sum is 25.

The square root of 117442123 is about 10837.0716985725. The cubic root of 117442123 is about 489.7126219938.

Adding to 117442123 its reverse (321244711), we get a palindrome (438686834).

The spelling of 117442123 in words is "one hundred seventeen million, four hundred forty-two thousand, one hundred twenty-three".