12103001 has 4 divisors (see below), whose sum is σ = 12110052. Its totient is φ = 12095952.

The previous prime is 12102983. The next prime is 12103009. The reversal of 12103001 is 10030121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10030121 = 1709 ⋅5869.

It can be written as a sum of positive squares in 2 ways, for example, as 3553225 + 8549776 = 1885^2 + 2924^2 .

It is a cyclic number.

It is not a de Polignac number, because 12103001 - 2²² = 7908697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12103001.

It is not an unprimeable number, because it can be changed into a prime (12103009) 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 in 3 ways as a sum of consecutive naturals, for example, 911 + ... + 5003.

It is an arithmetic number, because the mean of its divisors is an integer number (3027513).

Almost surely, 2^12103001 is an apocalyptic number.

It is an amenable number.

12103001 is a deficient number, since it is larger than the sum of its proper divisors (7051).

12103001 is an equidigital number, since it uses as much as digits as its factorization.

12103001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7050.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 12103001 is about 3478.9367628630. The cubic root of 12103001 is about 229.5960205314.

Adding to 12103001 its reverse (10030121), we get a palindrome (22133122).

The spelling of 12103001 in words is "twelve million, one hundred three thousand, one".