2130134123 has 4 divisors (see below), whose sum is σ = 2293990608. Its totient is φ = 1966277640.

The previous prime is 2130134113. The next prime is 2130134143. The reversal of 2130134123 is 3214310312.

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 2130134123 - 2⁶ = 2130134059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2130134095 and 2130134104.

It is not an unprimeable number, because it can be changed into a prime (2130134113) 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, 81928223 + ... + 81928248.

It is an arithmetic number, because the mean of its divisors is an integer number (573497652).

Almost surely, 2^2130134123 is an apocalyptic number.

2130134123 is a deficient number, since it is larger than the sum of its proper divisors (163856485).

2130134123 is a wasteful number, since it uses less digits than its factorization.

2130134123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163856484.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2130134123 is about 46153.3760736958. The cubic root of 2130134123 is about 1286.6753567816.

Adding to 2130134123 its reverse (3214310312), we get a palindrome (5344444435).

The spelling of 2130134123 in words is "two billion, one hundred thirty million, one hundred thirty-four thousand, one hundred twenty-three".