123107 has 4 divisors (see below), whose sum is σ = 123816. Its totient is φ = 122400.

The previous prime is 123091. The next prime is 123113. The reversal of 123107 is 701321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 701321 = 661 ⋅1061.

It is a cyclic number.

It is not a de Polignac number, because 123107 - 2⁴ = 123091 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 123091 and 123100.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 123107.

It is not an unprimeable number, because it can be changed into a prime (123127) 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, 107 + ... + 507.

It is an arithmetic number, because the mean of its divisors is an integer number (30954).

2¹²³¹⁰⁷ is an apocalyptic number.

123107 is a deficient number, since it is larger than the sum of its proper divisors (709).

123107 is an equidigital number, since it uses as much as digits as its factorization.

123107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 123107 is about 350.8660713150. The cubic root of 123107 is about 49.7463150558.

Adding to 123107 its reverse (701321), we get a palindrome (824428).

The spelling of 123107 in words is "one hundred twenty-three thousand, one hundred seven", and thus it is an iban number.