12700123 has 2 divisors, whose sum is σ = 12700124. Its totient is φ = 12700122.

The previous prime is 12700109. The next prime is 12700141. The reversal of 12700123 is 32100721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12700123 - 2⁵ = 12700091 is a prime.

It is a super-2 number, since 2×12700123² = 322586248430258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12700097 and 12700106.

It is not a weakly prime, because it can be changed into another prime (12700153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6350061 + 6350062.

It is an arithmetic number, because the mean of its divisors is an integer number (6350062).

Almost surely, 2^12700123 is an apocalyptic number.

12700123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12700123 is an equidigital number, since it uses as much as digits as its factorization.

12700123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 12700123 is about 3563.7231935155. The cubic root of 12700123 is about 233.3114085975.

Adding to 12700123 its reverse (32100721), we get a palindrome (44800844).

The spelling of 12700123 in words is "twelve million, seven hundred thousand, one hundred twenty-three".