80123 has 4 divisors (see below), whose sum is σ = 84360. Its totient is φ = 75888.

The previous prime is 80111. The next prime is 80141. The reversal of 80123 is 32108.

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 80123 - 2⁴ = 80107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80098 and 80107.

It is not an unprimeable number, because it can be changed into a prime (80153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2090 + ... + 2127.

It is an arithmetic number, because the mean of its divisors is an integer number (21090).

2⁸⁰¹²³ is an apocalyptic number.

80123 is a deficient number, since it is larger than the sum of its proper divisors (4237).

80123 is a wasteful number, since it uses less digits than its factorization.

80123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4236.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 80123 is about 283.0600642973. The cubic root of 80123 is about 43.1107654484.

The spelling of 80123 in words is "eighty thousand, one hundred twenty-three".