12500123 has 4 divisors (see below), whose sum is σ = 12686760. Its totient is φ = 12313488.

The previous prime is 12500101. The next prime is 12500177. The reversal of 12500123 is 32100521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32100521 = 139 ⋅230939.

It is a cyclic number.

It is not a de Polignac number, because 12500123 - 2⁸ = 12499867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12500098 and 12500107.

It is not an unprimeable number, because it can be changed into a prime (12508123) 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, 93218 + ... + 93351.

It is an arithmetic number, because the mean of its divisors is an integer number (3171690).

Almost surely, 2^12500123 is an apocalyptic number.

12500123 is a deficient number, since it is larger than the sum of its proper divisors (186637).

12500123 is an equidigital number, since it uses as much as digits as its factorization.

12500123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186636.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 12500123 is about 3535.5513007168. The cubic root of 12500123 is about 232.0802028987.

Adding to 12500123 its reverse (32100521), we get a palindrome (44600644).

The spelling of 12500123 in words is "twelve million, five hundred thousand, one hundred twenty-three".