11240020402321 has 16 divisors (see below), whose sum is σ = 11633355005328. Its totient is φ = 10852370841600.

The previous prime is 11240020402309. The next prime is 11240020402339. The reversal of 11240020402321 is 12320402004211.

It can be written as a sum of positive squares in 8 ways, for example, as 276769635921 + 10963250766400 = 526089^2 + 3311080^2 .

It is a cyclic number.

It is not a de Polignac number, because 11240020402321 - 2⁹ = 11240020401809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11240020402292 and 11240020402301.

It is not an unprimeable number, because it can be changed into a prime (11240020402301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133270861 + ... + 133355173.

It is an arithmetic number, because the mean of its divisors is an integer number (727084687833).

Almost surely, 2^{11240020402321} is an apocalyptic number.

It is an amenable number.

11240020402321 is a deficient number, since it is larger than the sum of its proper divisors (393334603007).

11240020402321 is an equidigital number, since it uses as much as digits as its factorization.

11240020402321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117972.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11240020402321 its reverse (12320402004211), we get a palindrome (23560422406532).

The spelling of 11240020402321 in words is "eleven trillion, two hundred forty billion, twenty million, four hundred two thousand, three hundred twenty-one".