73117123 has 4 divisors (see below), whose sum is σ = 73135440. Its totient is φ = 73098808.

The previous prime is 73117117. The next prime is 73117129. The reversal of 73117123 is 32171137.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32171137 = 4987 ⋅6451.

It is an interprime number because it is at equal distance from previous prime (73117117) and next prime (73117129).

It is a cyclic number.

It is not a de Polignac number, because 73117123 - 2¹⁷ = 72986051 is a prime.

It is a super-2 number, since 2×73117123² = 10692227351594258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73117129) 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, 340 + ... + 12097.

It is an arithmetic number, because the mean of its divisors is an integer number (18283860).

Almost surely, 2^73117123 is an apocalyptic number.

73117123 is a deficient number, since it is larger than the sum of its proper divisors (18317).

73117123 is a wasteful number, since it uses less digits than its factorization.

73117123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18316.

The product of its digits is 882, while the sum is 25.

The square root of 73117123 is about 8550.8551034385. The cubic root of 73117123 is about 418.1573147025.

The spelling of 73117123 in words is "seventy-three million, one hundred seventeen thousand, one hundred twenty-three".