11441164021 has 16 divisors (see below), whose sum is σ = 13398779520. Its totient is φ = 9564491520.

The previous prime is 11441163997. The next prime is 11441164027. The reversal of 11441164021 is 12046114411.

It is a cyclic number.

It is not a de Polignac number, because 11441164021 - 2⁹ = 11441163509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11441164027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1744270 + ... + 1750816.

It is an arithmetic number, because the mean of its divisors is an integer number (837423720).

Almost surely, 2^11441164021 is an apocalyptic number.

It is an amenable number.

11441164021 is a deficient number, since it is larger than the sum of its proper divisors (1957615499).

11441164021 is an equidigital number, since it uses as much as digits as its factorization.

11441164021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12684.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 11441164021 its reverse (12046114411), we get a palindrome (23487278432).

The spelling of 11441164021 in words is "eleven billion, four hundred forty-one million, one hundred sixty-four thousand, twenty-one".