2130023123 has 4 divisors (see below), whose sum is σ = 2222632848. Its totient is φ = 2037413400.

The previous prime is 2130023099. The next prime is 2130023149. The reversal of 2130023123 is 3213200312.

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 2130023123 - 2¹⁰ = 2130022099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130023183) 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, 46304828 + ... + 46304873.

It is an arithmetic number, because the mean of its divisors is an integer number (555658212).

Almost surely, 2^2130023123 is an apocalyptic number.

2130023123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2130023123 is a deficient number, since it is larger than the sum of its proper divisors (92609725).

2130023123 is an equidigital number, since it uses as much as digits as its factorization.

2130023123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92609724.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2130023123 is about 46152.1735457822. The cubic root of 2130023123 is about 1286.6530071020.

Adding to 2130023123 its reverse (3213200312), we get a palindrome (5343223435).

The spelling of 2130023123 in words is "two billion, one hundred thirty million, twenty-three thousand, one hundred twenty-three".