2130123223 has 4 divisors (see below), whose sum is σ = 2142436248. Its totient is φ = 2117810200.

The previous prime is 2130123217. The next prime is 2130123251. The reversal of 2130123223 is 3223210312.

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 2130123223 - 2²⁵ = 2096568791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2130123223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130123253) 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, 6156253 + ... + 6156598.

It is an arithmetic number, because the mean of its divisors is an integer number (535609062).

Almost surely, 2^2130123223 is an apocalyptic number.

2130123223 is a deficient number, since it is larger than the sum of its proper divisors (12313025).

2130123223 is a wasteful number, since it uses less digits than its factorization.

2130123223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12313024.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2130123223 is about 46153.2579890087. The cubic root of 2130123223 is about 1286.6731621177.

Adding to 2130123223 its reverse (3223210312), we get a palindrome (5353333535).

The spelling of 2130123223 in words is "two billion, one hundred thirty million, one hundred twenty-three thousand, two hundred twenty-three".