2107123 has 4 divisors (see below), whose sum is σ = 2141728. Its totient is φ = 2072520.

The previous prime is 2107117. The next prime is 2107141. The reversal of 2107123 is 3217012.

It is a happy number.

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 2107123 - 2¹³ = 2098931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2107097 and 2107106.

It is not an unprimeable number, because it can be changed into a prime (2107103) 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, 17211 + ... + 17332.

It is an arithmetic number, because the mean of its divisors is an integer number (535432).

2^2107123 is an apocalyptic number.

2107123 is a deficient number, since it is larger than the sum of its proper divisors (34605).

2107123 is an equidigital number, since it uses as much as digits as its factorization.

2107123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34604.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2107123 is about 1451.5932625911. The cubic root of 2107123 is about 128.2025398578.

The spelling of 2107123 in words is "two million, one hundred seven thousand, one hundred twenty-three".