12530612123 has 4 divisors (see below), whose sum is σ = 12607487208. Its totient is φ = 12453737040.

The previous prime is 12530612113. The next prime is 12530612147. The reversal of 12530612123 is 32121603521.

It is a happy number.

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 12530612123 - 2¹⁰ = 12530611099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12530612092 and 12530612101.

It is not an unprimeable number, because it can be changed into a prime (12530612113) 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, 38437298 + ... + 38437623.

It is an arithmetic number, because the mean of its divisors is an integer number (3151871802).

Almost surely, 2^12530612123 is an apocalyptic number.

12530612123 is a deficient number, since it is larger than the sum of its proper divisors (76875085).

12530612123 is an equidigital number, since it uses as much as digits as its factorization.

12530612123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76875084.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 12530612123 in words is "twelve billion, five hundred thirty million, six hundred twelve thousand, one hundred twenty-three".