11401644231205 has 8 divisors (see below), whose sum is σ = 13690180629792. Its totient is φ = 9115843683408.

The previous prime is 11401644231191. The next prime is 11401644231247. The reversal of 11401644231205 is 50213244610411.

It is a happy number.

11401644231205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11401644231205 - 2²¹ = 11401642134053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683953527 + ... + 683970196.

It is an arithmetic number, because the mean of its divisors is an integer number (1711272578724).

Almost surely, 2^{11401644231205} is an apocalyptic number.

It is an amenable number.

11401644231205 is a deficient number, since it is larger than the sum of its proper divisors (2288536398587).

11401644231205 is a wasteful number, since it uses less digits than its factorization.

11401644231205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367925395.

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 11401644231205 its reverse (50213244610411), we get a palindrome (61614888841616).

The spelling of 11401644231205 in words is "eleven trillion, four hundred one billion, six hundred forty-four million, two hundred thirty-one thousand, two hundred five".