12103123201 has 4 divisors (see below), whose sum is σ = 13034132692. Its totient is φ = 11172113712.

The previous prime is 12103123129. The next prime is 12103123213. The reversal of 12103123201 is 10232130121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6217164801 + 5885958400 = 78849^2 + 76720^2 .

It is a cyclic number.

It is not a de Polignac number, because 12103123201 - 2⁷ = 12103123073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103123271) 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, 465504726 + ... + 465504751.

It is an arithmetic number, because the mean of its divisors is an integer number (3258533173).

Almost surely, 2^12103123201 is an apocalyptic number.

It is an amenable number.

12103123201 is a deficient number, since it is larger than the sum of its proper divisors (931009491).

12103123201 is an equidigital number, since it uses as much as digits as its factorization.

12103123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931009490.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12103123201 its reverse (10232130121), we get a palindrome (22335253322).

The spelling of 12103123201 in words is "twelve billion, one hundred three million, one hundred twenty-three thousand, two hundred one".