2530320123 has 4 divisors (see below), whose sum is σ = 3373760168. Its totient is φ = 1686880080.

The previous prime is 2530320109. The next prime is 2530320127. The reversal of 2530320123 is 3210230352.

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

It is not a de Polignac number, because 2530320123 - 2⁸ = 2530319867 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 2530320123.

It is not an unprimeable number, because it can be changed into a prime (2530320127) 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, 421720018 + ... + 421720023.

It is an arithmetic number, because the mean of its divisors is an integer number (843440042).

Almost surely, 2^2530320123 is an apocalyptic number.

2530320123 is a deficient number, since it is larger than the sum of its proper divisors (843440045).

2530320123 is an equidigital number, since it uses as much as digits as its factorization.

2530320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843440044.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 2530320123 is about 50302.2874529578. The cubic root of 2530320123 is about 1362.6735403677.

Adding to 2530320123 its reverse (3210230352), we get a palindrome (5740550475).

The spelling of 2530320123 in words is "two billion, five hundred thirty million, three hundred twenty thousand, one hundred twenty-three".