11011344421401 has 20 divisors (see below), whose sum is σ = 16490478782052. Its totient is φ = 7322405336928.

The previous prime is 11011344421291. The next prime is 11011344421409. The reversal of 11011344421401 is 10412444311011.

11011344421401 is a `hidden beast` number, since 1 + 1 + 0 + 1 + 1 + 3 + 444 + 214 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9901871932176 + 1109472489225 = 3146724^2 + 1053315^2 .

It is not a de Polignac number, because 11011344421401 - 2⁹ = 11011344420889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11011344421409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 171180090 + ... + 171244403.

Almost surely, 2^{11011344421401} is an apocalyptic number.

It is an amenable number.

11011344421401 is a deficient number, since it is larger than the sum of its proper divisors (5479134360651).

11011344421401 is an equidigital number, since it uses as much as digits as its factorization.

11011344421401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342424902 (or 342424893 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 11011344421401 its reverse (10412444311011), we get a palindrome (21423788732412).

The spelling of 11011344421401 in words is "eleven trillion, eleven billion, three hundred forty-four million, four hundred twenty-one thousand, four hundred one".