109493123 has 4 divisors (see below), whose sum is σ = 109542048. Its totient is φ = 109444200.

The previous prime is 109493119. The next prime is 109493129. The reversal of 109493123 is 321394901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109493123 - 2² = 109493119 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 109493123.

It is not an unprimeable number, because it can be changed into a prime (109493129) 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, 20936 + ... + 25637.

It is an arithmetic number, because the mean of its divisors is an integer number (27385512).

Almost surely, 2^109493123 is an apocalyptic number.

109493123 is a deficient number, since it is larger than the sum of its proper divisors (48925).

109493123 is an equidigital number, since it uses as much as digits as its factorization.

109493123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48924.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 109493123 is about 10463.8961672983. The cubic root of 109493123 is about 478.4048946449.

The spelling of 109493123 in words is "one hundred nine million, four hundred ninety-three thousand, one hundred twenty-three".