11805125401 has 4 divisors (see below), whose sum is σ = 11815365172. Its totient is φ = 11794885632.

The previous prime is 11805125369. The next prime is 11805125413. The reversal of 11805125401 is 10452150811.

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 5207787225 + 6597338176 = 72165^2 + 81224^2 .

It is a cyclic number.

It is not a de Polignac number, because 11805125401 - 2⁵ = 11805125369 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 11805125401.

It is not an unprimeable number, because it can be changed into a prime (11805125471) 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, 5118156 + ... + 5120461.

It is an arithmetic number, because the mean of its divisors is an integer number (2953841293).

Almost surely, 2^11805125401 is an apocalyptic number.

It is an amenable number.

11805125401 is a deficient number, since it is larger than the sum of its proper divisors (10239771).

11805125401 is a wasteful number, since it uses less digits than its factorization.

11805125401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10239770.

The product of its (nonzero) digits is 1600, while the sum is 28.

The spelling of 11805125401 in words is "eleven billion, eight hundred five million, one hundred twenty-five thousand, four hundred one".