12123030001 has 4 divisors (see below), whose sum is σ = 12125950452. Its totient is φ = 12120109552.

The previous prime is 12123029999. The next prime is 12123030037. The reversal of 12123030001 is 10003032121.

12123030001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10003032121 = 137 ⋅73014833.

It can be written as a sum of positive squares in 2 ways, for example, as 1652829025 + 10470200976 = 40655^2 + 102324^2 .

It is a cyclic number.

It is not a de Polignac number, because 12123030001 - 2¹ = 12123029999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12123030041) 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 3 ways as a sum of consecutive naturals, for example, 1453990 + ... + 1462303.

It is an arithmetic number, because the mean of its divisors is an integer number (3031487613).

Almost surely, 2^12123030001 is an apocalyptic number.

It is an amenable number.

12123030001 is a deficient number, since it is larger than the sum of its proper divisors (2920451).

12123030001 is an equidigital number, since it uses as much as digits as its factorization.

12123030001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920450.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12123030001 its reverse (10003032121), we get a palindrome (22126062122).

The spelling of 12123030001 in words is "twelve billion, one hundred twenty-three million, thirty thousand, one".