11342203440021 has 12 divisors (see below), whose sum is σ = 16948120083180. Its totient is φ = 7300728650880.

The previous prime is 11342203439939. The next prime is 11342203440031. The reversal of 11342203440021 is 12004430224311.

11342203440021 is a `hidden beast` number, since 1 + 1 + 3 + 4 + 220 + 34 + 400 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4743187428996 + 6599016011025 = 2177886^2 + 2568855^2 .

It is not a de Polignac number, because 11342203440021 - 2¹⁵ = 11342203407253 is a prime.

It is a super-2 number, since 2×11342203440021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11342203440031) 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 11 ways as a sum of consecutive naturals, for example, 21728358820 + ... + 21728359341.

It is an arithmetic number, because the mean of its divisors is an integer number (1412343340265).

Almost surely, 2^{11342203440021} is an apocalyptic number.

It is an amenable number.

11342203440021 is a deficient number, since it is larger than the sum of its proper divisors (5605916643159).

11342203440021 is a wasteful number, since it uses less digits than its factorization.

11342203440021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43456718196 (or 43456718193 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 11342203440021 its reverse (12004430224311), we get a palindrome (23346633664332).

The spelling of 11342203440021 in words is "eleven trillion, three hundred forty-two billion, two hundred three million, four hundred forty thousand, twenty-one".