12103204401 has 24 divisors (see below), whose sum is σ = 17713687680. Its totient is φ = 7962173856.

The previous prime is 12103204397. The next prime is 12103204423. The reversal of 12103204401 is 10440230121.

It is not a de Polignac number, because 12103204401 - 2² = 12103204397 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12103204471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1665091 + ... + 1672343.

It is an arithmetic number, because the mean of its divisors is an integer number (738070320).

Almost surely, 2^12103204401 is an apocalyptic number.

It is an amenable number.

12103204401 is a deficient number, since it is larger than the sum of its proper divisors (5610483279).

12103204401 is a wasteful number, since it uses less digits than its factorization.

12103204401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9685 (or 9682 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12103204401 its reverse (10440230121), we get a palindrome (22543434522).

The spelling of 12103204401 in words is "twelve billion, one hundred three million, two hundred four thousand, four hundred one".