2315130123 has 4 divisors (see below), whose sum is σ = 3086840168. Its totient is φ = 1543420080.

The previous prime is 2315130121. The next prime is 2315130131. The reversal of 2315130123 is 3210315132.

2315130123 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2315130123 - 2¹ = 2315130121 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 2315130123.

It is not an unprimeable number, because it can be changed into a prime (2315130121) 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, 385855018 + ... + 385855023.

It is an arithmetic number, because the mean of its divisors is an integer number (771710042).

Almost surely, 2^2315130123 is an apocalyptic number.

2315130123 is a deficient number, since it is larger than the sum of its proper divisors (771710045).

2315130123 is an equidigital number, since it uses as much as digits as its factorization.

2315130123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771710044.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 2315130123 is about 48115.7990996720. The cubic root of 2315130123 is about 1322.8942697120.

Adding to 2315130123 its reverse (3210315132), we get a palindrome (5525445255).

The spelling of 2315130123 in words is "two billion, three hundred fifteen million, one hundred thirty thousand, one hundred twenty-three".