2530402123 has 4 divisors (see below), whose sum is σ = 2589248728. Its totient is φ = 2471555520.

The previous prime is 2530402117. The next prime is 2530402151. The reversal of 2530402123 is 3212040352.

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 2530402123 - 2⁹ = 2530401611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2530402094 and 2530402103.

It is not an unprimeable number, because it can be changed into a prime (2530402103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29423238 + ... + 29423323.

It is an arithmetic number, because the mean of its divisors is an integer number (647312182).

Almost surely, 2^2530402123 is an apocalyptic number.

2530402123 is a deficient number, since it is larger than the sum of its proper divisors (58846605).

2530402123 is an equidigital number, since it uses as much as digits as its factorization.

2530402123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58846604.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2530402123 is about 50303.1025186320. The cubic root of 2530402123 is about 1362.6882602474.

Adding to 2530402123 its reverse (3212040352), we get a palindrome (5742442475).

The spelling of 2530402123 in words is "two billion, five hundred thirty million, four hundred two thousand, one hundred twenty-three".