11021161144451 has 8 divisors (see below), whose sum is σ = 11125945167360. Its totient is φ = 10916658422208.

The previous prime is 11021161144417. The next prime is 11021161144453. The reversal of 11021161144451 is 15444116112011.

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 11021161144451 - 2¹⁴ = 11021161128067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021161144453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70246436 + ... + 70403153.

It is an arithmetic number, because the mean of its divisors is an integer number (1390743145920).

Almost surely, 2^{11021161144451} is an apocalyptic number.

11021161144451 is a deficient number, since it is larger than the sum of its proper divisors (104784022909).

11021161144451 is a wasteful number, since it uses less digits than its factorization.

11021161144451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140650333.

The product of its (nonzero) digits is 3840, while the sum is 32.

Adding to 11021161144451 its reverse (15444116112011), we get a palindrome (26465277256462).

The spelling of 11021161144451 in words is "eleven trillion, twenty-one billion, one hundred sixty-one million, one hundred forty-four thousand, four hundred fifty-one".