11404400321 has 8 divisors (see below), whose sum is σ = 11494716288. Its totient is φ = 11314134000.

The previous prime is 11404400261. The next prime is 11404400353. The reversal of 11404400321 is 12300440411.

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 11404400321 - 2⁶ = 11404400257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11404400293 and 11404400302.

It is not an unprimeable number, because it can be changed into a prime (11404400521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547976 + ... + 568406.

It is an arithmetic number, because the mean of its divisors is an integer number (1436839536).

Almost surely, 2^11404400321 is an apocalyptic number.

It is an amenable number.

11404400321 is a deficient number, since it is larger than the sum of its proper divisors (90315967).

11404400321 is a wasteful number, since it uses less digits than its factorization.

11404400321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24823.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11404400321 its reverse (12300440411), we get a palindrome (23704840732).

The spelling of 11404400321 in words is "eleven billion, four hundred four million, four hundred thousand, three hundred twenty-one".