2130123 has 8 divisors (see below), whose sum is σ = 2893968. Its totient is φ = 1393184.

The previous prime is 2130101. The next prime is 2130133. The reversal of 2130123 is 3210312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2130123 - 2⁸ = 2129867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2130099 and 2130108.

It is not an unprimeable number, because it can be changed into a prime (2130133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6540 + ... + 6857.

It is an arithmetic number, because the mean of its divisors is an integer number (361746).

2^2130123 is an apocalyptic number.

2130123 is a deficient number, since it is larger than the sum of its proper divisors (763845).

2130123 is a wasteful number, since it uses less digits than its factorization.

2130123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13453.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2130123 is about 1459.4940904300. The cubic root of 2130123 is about 128.6673117218.

Adding to 2130123 its reverse (3210312), we get a palindrome (5340435).

The spelling of 2130123 in words is "two million, one hundred thirty thousand, one hundred twenty-three".