12500310123 has 32 divisors (see below), whose sum is σ = 21246981120. Its totient is φ = 7115212800.

The previous prime is 12500310101. The next prime is 12500310127. The reversal of 12500310123 is 32101300521.

12500310123 is a `hidden beast` number, since 12 + 500 + 31 + 0 + 123 = 666.

12500310123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12500310123 - 2⁶ = 12500310059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12500310096 and 12500310105.

It is not an unprimeable number, because it can be changed into a prime (12500310127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80103 + ... + 177248.

It is an arithmetic number, because the mean of its divisors is an integer number (663968160).

Almost surely, 2^12500310123 is an apocalyptic number.

12500310123 is a deficient number, since it is larger than the sum of its proper divisors (8746670997).

12500310123 is a wasteful number, since it uses less digits than its factorization.

12500310123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257624 (or 257618 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 12500310123 its reverse (32101300521), we get a palindrome (44601610644).

The spelling of 12500310123 in words is "twelve billion, five hundred million, three hundred ten thousand, one hundred twenty-three".