123016 has 8 divisors (see below), whose sum is σ = 230670. Its totient is φ = 61504.

The previous prime is 123007. The next prime is 123017. The reversal of 123016 is 610321.

It can be written as a sum of positive squares in only one way, i.e., 62500 + 60516 = 250^2 + 246^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 122987 and 123005.

It is not an unprimeable number, because it can be changed into a prime (123017) by changing a digit.

123016 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7681 + ... + 7696.

2¹²³⁰¹⁶ is an apocalyptic number.

It is an amenable number.

123016 is a deficient number, since it is larger than the sum of its proper divisors (107654).

123016 is a wasteful number, since it uses less digits than its factorization.

123016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15383 (or 15379 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 123016 is about 350.7363682312. The cubic root of 123016 is about 49.7340546359.

Adding to 123016 its reverse (610321), we get a palindrome (733337).

The spelling of 123016 in words is "one hundred twenty-three thousand, sixteen".