980123 has 4 divisors (see below), whose sum is σ = 986160. Its totient is φ = 974088.

The previous prime is 980117. The next prime is 980131. The reversal of 980123 is 321089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321089 = 547 ⋅587.

It is a cyclic number.

It is not a de Polignac number, because 980123 - 2⁴ = 980107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (980173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2768 + ... + 3101.

It is an arithmetic number, because the mean of its divisors is an integer number (246540).

2⁹⁸⁰¹²³ is an apocalyptic number.

980123 is a deficient number, since it is larger than the sum of its proper divisors (6037).

980123 is a wasteful number, since it uses less digits than its factorization.

980123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 980123 is about 990.0116160935. The cubic root of 980123 is about 99.3329942584.

Subtracting from 980123 its sum of digits (23), we obtain a square (980100 = 990²).

The spelling of 980123 in words is "nine hundred eighty thousand, one hundred twenty-three".